13136023446 has 32 divisors (see below), whose sum is σ = 32334828288. Its totient is φ = 3464445600.

The previous prime is 13136023409. The next prime is 13136023451. The reversal of 13136023446 is 64432063131.

It is a super-2 number, since 2×13136023446² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 12028780 + ... + 12029871.

It is an arithmetic number, because the mean of its divisors is an integer number (1010463384).

Almost surely, 2^13136023446 is an apocalyptic number.

13136023446 is an abundant number, since it is smaller than the sum of its proper divisors (19198804842).

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

13136023446 is a wasteful number, since it uses less digits than its factorization.

13136023446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24058676.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 13136023446 its reverse (64432063131), we get a palindrome (77568086577).

The spelling of 13136023446 in words is "thirteen billion, one hundred thirty-six million, twenty-three thousand, four hundred forty-six".