13442400431512 has 32 divisors (see below), whose sum is σ = 27350509420080. Its totient is φ = 6156824618880.

The previous prime is 13442400431497. The next prime is 13442400431521. The reversal of 13442400431512 is 21513400424431.

It is a super-2 number, since 2×13442400431512² (a number of 27 digits) contains 22 as substring.

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, 493321683 + ... + 493348930.

Almost surely, 2^{13442400431512} is an apocalyptic number.

It is an amenable number.

13442400431512 is an abundant number, since it is smaller than the sum of its proper divisors (13908108988568).

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

13442400431512 is a wasteful number, since it uses less digits than its factorization.

13442400431512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986670763 (or 986670759 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 13442400431512 its reverse (21513400424431), we get a palindrome (34955800855943).

The spelling of 13442400431512 in words is "thirteen trillion, four hundred forty-two billion, four hundred million, four hundred thirty-one thousand, five hundred twelve".