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122113313 = 717444759
BaseRepresentation
bin1110100011101…
…00110100100001
322111202222222022
413101310310201
5222230111223
620041151225
73011642330
oct721646441
9274688868
10122113313
1162a255a3
1234a8b515
131c3b6aca
1412309d17
15aac1ac8
hex7474d21

122113313 has 4 divisors (see below), whose sum is σ = 139558080. Its totient is φ = 104668548.

The previous prime is 122113297. The next prime is 122113319. The reversal of 122113313 is 313311221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122113313 - 24 = 122113297 is a prime.

It is a super-2 number, since 2×1221133132 = 29823322423671938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122113291 and 122113300.

It is not an unprimeable number, because it can be changed into a prime (122113319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8722373 + ... + 8722386.

It is an arithmetic number, because the mean of its divisors is an integer number (34889520).

Almost surely, 2122113313 is an apocalyptic number.

It is an amenable number.

122113313 is a deficient number, since it is larger than the sum of its proper divisors (17444767).

122113313 is an equidigital number, since it uses as much as digits as its factorization.

122113313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17444766.

The product of its digits is 108, while the sum is 17.

The square root of 122113313 is about 11050.4892651864. The cubic root of 122113313 is about 496.1210696152.

Adding to 122113313 its reverse (313311221), we get a palindrome (435424534).

The spelling of 122113313 in words is "one hundred twenty-two million, one hundred thirteen thousand, three hundred thirteen".

Divisors: 1 7 17444759 122113313