103331211312 has 80 divisors (see below), whose sum is σ = 305211576320. Its totient is φ = 29509802496.

The previous prime is 103331211289. The next prime is 103331211377. The reversal of 103331211312 is 213112133301.

It is a happy number.

It is a super-2 number, since 2×103331211312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683628 + ... + 820980.

It is an arithmetic number, because the mean of its divisors is an integer number (3815144704).

Almost surely, 2^103331211312 is an apocalyptic number.

103331211312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103331211312 is an abundant number, since it is smaller than the sum of its proper divisors (201880365008).

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

103331211312 is a wasteful number, since it uses less digits than its factorization.

103331211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139610 (or 139604 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 103331211312 its reverse (213112133301), we get a palindrome (316443344613).

The spelling of 103331211312 in words is "one hundred three billion, three hundred thirty-one million, two hundred eleven thousand, three hundred twelve".