102213122011031 has 4 divisors (see below), whose sum is σ = 103168384833672. Its totient is φ = 101257859188392.

The previous prime is 102213122010971. The next prime is 102213122011067. The reversal of 102213122011031 is 130110221312201.

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-102213122011031 is a prime.

It is a super-2 number, since 2×102213122011031² (a number of 29 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 = 102213122010994 and 102213122011012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102213122019031) 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, 477631411160 + ... + 477631411373.

It is an arithmetic number, because the mean of its divisors is an integer number (25792096208418).

Almost surely, 2^{102213122011031} is an apocalyptic number.

102213122011031 is a deficient number, since it is larger than the sum of its proper divisors (955262822641).

102213122011031 is an equidigital number, since it uses as much as digits as its factorization.

102213122011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955262822640.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 102213122011031 its reverse (130110221312201), we get a palindrome (232323343323232).

The spelling of 102213122011031 in words is "one hundred two trillion, two hundred thirteen billion, one hundred twenty-two million, eleven thousand, thirty-one".