20132113313 has 4 divisors (see below), whose sum is σ = 21680737428. Its totient is φ = 18583489200.

The previous prime is 20132113307. The next prime is 20132113343. The reversal of 20132113313 is 31331123102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31331123102 = 2 ⋅15665561551.

It can be written as a sum of positive squares in 2 ways, for example, as 13724591104 + 6407522209 = 117152^2 + 80047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20132113313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20132113343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774312038 + ... + 774312063.

It is an arithmetic number, because the mean of its divisors is an integer number (5420184357).

Almost surely, 2^20132113313 is an apocalyptic number.

It is an amenable number.

20132113313 is a deficient number, since it is larger than the sum of its proper divisors (1548624115).

20132113313 is a wasteful number, since it uses less digits than its factorization.

20132113313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548624114.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20132113313 its reverse (31331123102), we get a palindrome (51463236415).

The spelling of 20132113313 in words is "twenty billion, one hundred thirty-two million, one hundred thirteen thousand, three hundred thirteen".