13112020402445 has 16 divisors (see below), whose sum is σ = 15757049070000. Its totient is φ = 10474542955008.

The previous prime is 13112020402423. The next prime is 13112020402457. The reversal of 13112020402445 is 54420402021131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 230144710756 + 12881875691689 = 479734^2 + 3589133^2 .

It is a cyclic number.

It is not a de Polignac number, because 13112020402445 - 2²⁰ = 13112019353869 is a prime.

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, 10247771 + ... + 11456039.

It is an arithmetic number, because the mean of its divisors is an integer number (984815566875).

Almost surely, 2^{13112020402445} is an apocalyptic number.

It is an amenable number.

13112020402445 is a deficient number, since it is larger than the sum of its proper divisors (2645028667555).

13112020402445 is a wasteful number, since it uses less digits than its factorization.

13112020402445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211392.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 13112020402445 its reverse (54420402021131), we get a palindrome (67532422423576).

The spelling of 13112020402445 in words is "thirteen trillion, one hundred twelve billion, twenty million, four hundred two thousand, four hundred forty-five".