102210121131031 has 4 divisors (see below), whose sum is σ = 102211387960032. Its totient is φ = 102208854302032.

The previous prime is 102210121131011. The next prime is 102210121131043. The reversal of 102210121131031 is 130131121012201.

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 102210121131031 - 2¹⁹ = 102210120606743 is a prime.

It is a super-3 number, since 3×102210121131031³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102210121131011) 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, 633293470 + ... + 633454843.

It is an arithmetic number, because the mean of its divisors is an integer number (25552846990008).

Almost surely, 2^{102210121131031} is an apocalyptic number.

102210121131031 is a deficient number, since it is larger than the sum of its proper divisors (1266829001).

102210121131031 is an equidigital number, since it uses as much as digits as its factorization.

102210121131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266829000.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 102210121131031 its reverse (130131121012201), we get a palindrome (232341242143232).

The spelling of 102210121131031 in words is "one hundred two trillion, two hundred ten billion, one hundred twenty-one million, one hundred thirty-one thousand, thirty-one".