131031112210 has 16 divisors (see below), whose sum is σ = 237417964992. Its totient is φ = 52065342000.

The previous prime is 131031112193. The next prime is 131031112283. The reversal of 131031112210 is 12211130131.

It is a happy number.

It is a super-2 number, since 2×131031112210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43386276 + ... + 43389295.

It is an arithmetic number, because the mean of its divisors is an integer number (14838622812).

Almost surely, 2^131031112210 is an apocalyptic number.

131031112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131031112210 is a deficient number, since it is larger than the sum of its proper divisors (106386852782).

131031112210 is a wasteful number, since it uses less digits than its factorization.

131031112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86775729.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131031112210 its reverse (12211130131), we get a palindrome (143242242341).

The spelling of 131031112210 in words is "one hundred thirty-one billion, thirty-one million, one hundred twelve thousand, two hundred ten".