131121322224 has 40 divisors (see below), whose sum is σ = 339233479632. Its totient is φ = 43642152960.

The previous prime is 131121322147. The next prime is 131121322231. The reversal of 131121322224 is 422223121131.

It is a super-2 number, since 2×131121322224² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 131121322194 and 131121322203.

It is a congruent number.

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, 1997187 + ... + 2061794.

Almost surely, 2^131121322224 is an apocalyptic number.

It is an amenable number.

131121322224 is an abundant number, since it is smaller than the sum of its proper divisors (208112157408).

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

131121322224 is a wasteful number, since it uses less digits than its factorization.

131121322224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059665 (or 4059659 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 131121322224 its reverse (422223121131), we get a palindrome (553344443355).

The spelling of 131121322224 in words is "one hundred thirty-one billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred twenty-four".