131233210202420 has 48 divisors (see below), whose sum is σ = 279140934240000. Its totient is φ = 51817165046400.

The previous prime is 131233210202317. The next prime is 131233210202449. The reversal of 131233210202420 is 24202012332131.

It is a self number, because there is not a number n which added to its sum of digits gives 131233210202420.

It is a congruent number.

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, 2297795 + ... + 16362954.

It is an arithmetic number, because the mean of its divisors is an integer number (5815436130000).

Almost surely, 2^{131233210202420} is an apocalyptic number.

131233210202420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131233210202420 is an abundant number, since it is smaller than the sum of its proper divisors (147907724037580).

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

131233210202420 is a wasteful number, since it uses less digits than its factorization.

131233210202420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18665288 (or 18665286 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 131233210202420 its reverse (24202012332131), we get a palindrome (155435222534551).

The spelling of 131233210202420 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, two hundred ten million, two hundred two thousand, four hundred twenty".