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130120222031 = 353368612527
BaseRepresentation
bin111100100101111000…
…1010000010101001111
3110102212022011011020122
41321023301100111033
54112441234101111
6135435411535155
712254333431622
oct1711361202517
9412768134218
10130120222031
1150202522788
1221274bba4bb
13c368a78827
146425441db9
1535b86aecdb
hex1e4bc5054f

130120222031 has 4 divisors (see below), whose sum is σ = 130488834912. Its totient is φ = 129751609152.

The previous prime is 130120222021. The next prime is 130120222033. The reversal of 130120222031 is 130222021031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130120222031 is a prime.

It is a super-2 number, since 2×1301202220312 (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 (130120222033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184305911 + ... + 184306616.

It is an arithmetic number, because the mean of its divisors is an integer number (32622208728).

Almost surely, 2130120222031 is an apocalyptic number.

130120222031 is a deficient number, since it is larger than the sum of its proper divisors (368612881).

130120222031 is an equidigital number, since it uses as much as digits as its factorization.

130120222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368612880.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 130120222031 its reverse (130222021031), we get a palindrome (260342243062).

The spelling of 130120222031 in words is "one hundred thirty billion, one hundred twenty million, two hundred twenty-two thousand, thirty-one".

Divisors: 1 353 368612527 130120222031