131000322220040 has 128 divisors (see below), whose sum is σ = 378542737359360. Its totient is φ = 39656858148864.

The previous prime is 131000322219869. The next prime is 131000322220057. The reversal of 131000322220040 is 40022223000131.

It is a super-2 number, since 2×131000322220040² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 131000322219994 and 131000322220021.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 782288009 + ... + 782455448.

It is an arithmetic number, because the mean of its divisors is an integer number (2957365135620).

Almost surely, 2^{131000322220040} is an apocalyptic number.

131000322220040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000322220040 is an abundant number, since it is smaller than the sum of its proper divisors (247542415139320).

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

131000322220040 is a wasteful number, since it uses less digits than its factorization.

131000322220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564743511 (or 1564743507 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 131000322220040 its reverse (40022223000131), we get a palindrome (171022545220171).

The spelling of 131000322220040 in words is "one hundred thirty-one trillion, three hundred twenty-two million, two hundred twenty thousand, forty".