131023020322 has 32 divisors (see below), whose sum is σ = 212315400000. Its totient is φ = 60451759296.

The previous prime is 131023020301. The next prime is 131023020361. The reversal of 131023020322 is 223020320131.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 131023020322.

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, 23697 + ... + 512452.

It is an arithmetic number, because the mean of its divisors is an integer number (6634856250).

Almost surely, 2^131023020322 is an apocalyptic number.

131023020322 is a deficient number, since it is larger than the sum of its proper divisors (81292379678).

131023020322 is a wasteful number, since it uses less digits than its factorization.

131023020322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536338.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 131023020322 its reverse (223020320131), we get a palindrome (354043340453).

The spelling of 131023020322 in words is "one hundred thirty-one billion, twenty-three million, twenty thousand, three hundred twenty-two".