323220310101131 has 4 divisors (see below), whose sum is σ = 325203256789032. Its totient is φ = 321237363413232.

The previous prime is 323220310101049. The next prime is 323220310101163. The reversal of 323220310101131 is 131101013022323.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323220310101131 is a prime.

It is a super-2 number, since 2×323220310101131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323220310101097 and 323220310101106.

It is not an unprimeable number, because it can be changed into a prime (323220310100131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991473343706 + ... + 991473344031.

It is an arithmetic number, because the mean of its divisors is an integer number (81300814197258).

Almost surely, 2^{323220310101131} is an apocalyptic number.

323220310101131 is a deficient number, since it is larger than the sum of its proper divisors (1982946687901).

323220310101131 is a wasteful number, since it uses less digits than its factorization.

323220310101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982946687900.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 323220310101131 its reverse (131101013022323), we get a palindrome (454321323123454).

The spelling of 323220310101131 in words is "three hundred twenty-three trillion, two hundred twenty billion, three hundred ten million, one hundred one thousand, one hundred thirty-one".