131243322111304 has 128 divisors (see below), whose sum is σ = 295377662361600. Its totient is φ = 54008308776960.

The previous prime is 131243322111283. The next prime is 131243322111329. The reversal of 131243322111304 is 403111223342131.

It is a super-2 number, since 2×131243322111304² (a number of 29 digits) contains 22 as substring.

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, 1565042944 + ... + 1565126800.

It is an arithmetic number, because the mean of its divisors is an integer number (2307637987200).

Almost surely, 2^{131243322111304} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131243322111304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147688831180800).

131243322111304 is an abundant number, since it is smaller than the sum of its proper divisors (164134340250296).

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

131243322111304 is a wasteful number, since it uses less digits than its factorization.

131243322111304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130503 (or 130499 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 131243322111304 its reverse (403111223342131), we get a palindrome (534354545453435).

The spelling of 131243322111304 in words is "one hundred thirty-one trillion, two hundred forty-three billion, three hundred twenty-two million, one hundred eleven thousand, three hundred four".