20345453013 has 16 divisors (see below), whose sum is σ = 27709194240. Its totient is φ = 13272772656.

The previous prime is 20345453003. The next prime is 20345453021. The reversal of 20345453013 is 31035454302.

It is not a de Polignac number, because 20345453013 - 2⁴ = 20345452997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20345453003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1323256 + ... + 1338542.

It is an arithmetic number, because the mean of its divisors is an integer number (1731824640).

Almost surely, 2^20345453013 is an apocalyptic number.

It is an amenable number.

20345453013 is a deficient number, since it is larger than the sum of its proper divisors (7363741227).

20345453013 is a wasteful number, since it uses less digits than its factorization.

20345453013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24776.

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 20345453013 in words is "twenty billion, three hundred forty-five million, four hundred fifty-three thousand, thirteen".