1031121103100 has 36 divisors (see below), whose sum is σ = 2440944868488. Its totient is φ = 374953128000.

The previous prime is 1031121103093. The next prime is 1031121103141. The reversal of 1031121103100 is 13011211301.

It is a happy number.

It is a super-2 number, since 2×1031121103100² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468690311 + ... + 468692510.

Almost surely, 2^{1031121103100} is an apocalyptic number.

1031121103100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031121103100 is an abundant number, since it is smaller than the sum of its proper divisors (1409823765388).

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

1031121103100 is a wasteful number, since it uses less digits than its factorization.

1031121103100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937382846 (or 937382839 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1031121103100 its reverse (13011211301), we get a palindrome (1044132314401).

The spelling of 1031121103100 in words is "one trillion, thirty-one billion, one hundred twenty-one million, one hundred three thousand, one hundred".