103013021312 has 32 divisors (see below), whose sum is σ = 206125369920. Its totient is φ = 51279595264.

The previous prime is 103013021311. The next prime is 103013021333. The reversal of 103013021312 is 213120310301.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×103013021312² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103013021311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1743608 + ... + 1801719.

It is an arithmetic number, because the mean of its divisors is an integer number (6441417810).

Almost surely, 2^103013021312 is an apocalyptic number.

It is an amenable number.

103013021312 is an abundant number, since it is smaller than the sum of its proper divisors (103112348608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103013021312 is an equidigital number, since it uses as much as digits as its factorization.

103013021312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545568 (or 3545556 counting only the distinct ones).

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

Adding to 103013021312 its reverse (213120310301), we get a palindrome (316133331613).

The spelling of 103013021312 in words is "one hundred three billion, thirteen million, twenty-one thousand, three hundred twelve".