131123201022 has 48 divisors (see below), whose sum is σ = 309967128432. Its totient is φ = 39729231360.

The previous prime is 131123200963. The next prime is 131123201057. The reversal of 131123201022 is 220102321131.

131123201022 is a `hidden beast` number, since 1 + 311 + 2 + 320 + 10 + 22 = 666.

131123201022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 131123200986 and 131123201004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1692028 + ... + 1767824.

It is an arithmetic number, because the mean of its divisors is an integer number (6457648509).

Almost surely, 2^131123201022 is an apocalyptic number.

131123201022 is an abundant number, since it is smaller than the sum of its proper divisors (178843927410).

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

131123201022 is a wasteful number, since it uses less digits than its factorization.

131123201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84553 (or 84550 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 131123201022 its reverse (220102321131), we get a palindrome (351225522153).

The spelling of 131123201022 in words is "one hundred thirty-one billion, one hundred twenty-three million, two hundred one thousand, twenty-two".