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122030433421 = 139386956417
BaseRepresentation
bin111000110100110010…
…1001010010010001101
3102122222111210022112021
41301221211022102031
53444404242332141
6132020543410141
711550012366241
oct1615145122215
9378874708467
10122030433421
1147830aa8876
121b7978b3951
13b679a58a70
145c98c84421
15329337a6d1
hex1c6994a48d

122030433421 has 4 divisors (see below), whose sum is σ = 131417389852. Its totient is φ = 112643476992.

The previous prime is 122030433409. The next prime is 122030433439. The reversal of 122030433421 is 124334030221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124334030221 = 1031207126507.

It can be written as a sum of positive squares in 2 ways, for example, as 46188027396 + 75842406025 = 214914^2 + 275395^2 .

It is a cyclic number.

It is not a de Polignac number, because 122030433421 - 25 = 122030433389 is a prime.

It is a super-2 number, since 2×1220304334212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122030433401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4693478196 + ... + 4693478221.

It is an arithmetic number, because the mean of its divisors is an integer number (32854347463).

Almost surely, 2122030433421 is an apocalyptic number.

It is an amenable number.

122030433421 is a deficient number, since it is larger than the sum of its proper divisors (9386956431).

122030433421 is an equidigital number, since it uses as much as digits as its factorization.

122030433421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9386956430.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 122030433421 its reverse (124334030221), we get a palindrome (246364463642).

The spelling of 122030433421 in words is "one hundred twenty-two billion, thirty million, four hundred thirty-three thousand, four hundred twenty-one".

Divisors: 1 13 9386956417 122030433421