23131332011442 has 128 divisors (see below), whose sum is σ = 51732328919040. Its totient is φ = 6861256554240.

The previous prime is 23131332011429. The next prime is 23131332011477. The reversal of 23131332011442 is 24411023313132.

It is a super-2 number, since 2×23131332011442² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 97926483 + ... + 98162409.

It is an arithmetic number, because the mean of its divisors is an integer number (404158819680).

Almost surely, 2^{23131332011442} is an apocalyptic number.

23131332011442 is an abundant number, since it is smaller than the sum of its proper divisors (28600996907598).

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

23131332011442 is a wasteful number, since it uses less digits than its factorization.

23131332011442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236648.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 23131332011442 its reverse (24411023313132), we get a palindrome (47542355324574).

The spelling of 23131332011442 in words is "twenty-three trillion, one hundred thirty-one billion, three hundred thirty-two million, eleven thousand, four hundred forty-two".