1102012321031 has 4 divisors (see below), whose sum is σ = 1103176009752. Its totient is φ = 1100848632312.

The previous prime is 1102012320961. The next prime is 1102012321037. The reversal of 1102012321031 is 1301232102011.

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 2^k-1102012321031 is a prime.

It is a super-2 number, since 2×1102012321031² (a number of 25 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 (1102012321037) 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, 581842940 + ... + 581844833.

It is an arithmetic number, because the mean of its divisors is an integer number (275794002438).

Almost surely, 2^{1102012321031} is an apocalyptic number.

1102012321031 is a deficient number, since it is larger than the sum of its proper divisors (1163688721).

1102012321031 is an equidigital number, since it uses as much as digits as its factorization.

1102012321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163688720.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1102012321031 its reverse (1301232102011), we get a palindrome (2403244423042).

The spelling of 1102012321031 in words is "one trillion, one hundred two billion, twelve million, three hundred twenty-one thousand, thirty-one".