42440111131012 has 48 divisors (see below), whose sum is σ = 87018245822592. Its totient is φ = 17731162725120.

The previous prime is 42440111131003. The next prime is 42440111131027. The reversal of 42440111131012 is 21013111104424.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12934263 + ... + 15880030.

It is an arithmetic number, because the mean of its divisors is an integer number (1812880121304).

Almost surely, 2^{42440111131012} is an apocalyptic number.

It is an amenable number.

42440111131012 is an abundant number, since it is smaller than the sum of its proper divisors (44578134691580).

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

42440111131012 is a wasteful number, since it uses less digits than its factorization.

42440111131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28815628 (or 28815626 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 42440111131012 its reverse (21013111104424), we get a palindrome (63453222235436).

The spelling of 42440111131012 in words is "forty-two trillion, four hundred forty billion, one hundred eleven million, one hundred thirty-one thousand, twelve".