131022120210 has 32 divisors (see below), whose sum is σ = 319608061632. Its totient is φ = 34366457280.

The previous prime is 131022120209. The next prime is 131022120221. The reversal of 131022120210 is 12021220131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131022120210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35796564 + ... + 35800223.

It is an arithmetic number, because the mean of its divisors is an integer number (9987751926).

Almost surely, 2^131022120210 is an apocalyptic number.

131022120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131022120210 is an abundant number, since it is smaller than the sum of its proper divisors (188585941422).

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

131022120210 is a wasteful number, since it uses less digits than its factorization.

131022120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71596858.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 131022120210 its reverse (12021220131), we get a palindrome (143043340341).

It can be divided in two parts, 13102 and 2120210, that added together give a palindrome (2133312).

The spelling of 131022120210 in words is "one hundred thirty-one billion, twenty-two million, one hundred twenty thousand, two hundred ten".