102122011031 has 4 divisors (see below), whose sum is σ = 102123283512. Its totient is φ = 102120738552.

The previous prime is 102122011007. The next prime is 102122011081. The reversal of 102122011031 is 130110221201.

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

It is a cyclic number.

It is not a de Polignac number, because 102122011031 - 2⁶ = 102122010967 is a prime.

It is a super-2 number, since 2×102122011031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102122010997 and 102122011015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122011081) 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, 507125 + ... + 679278.

It is an arithmetic number, because the mean of its divisors is an integer number (25530820878).

Almost surely, 2^102122011031 is an apocalyptic number.

102122011031 is a deficient number, since it is larger than the sum of its proper divisors (1272481).

102122011031 is an equidigital number, since it uses as much as digits as its factorization.

102122011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272480.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 102122011031 its reverse (130110221201), we get a palindrome (232232232232).

The spelling of 102122011031 in words is "one hundred two billion, one hundred twenty-two million, eleven thousand, thirty-one".