20344100175031 has 4 divisors (see below), whose sum is σ = 20344229741872. Its totient is φ = 20343970608192.

The previous prime is 20344100175019. The next prime is 20344100175067. The reversal of 20344100175031 is 13057100144302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20344100175031 - 2²¹ = 20344098077879 is a prime.

It is a super-2 number, since 2×20344100175031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20344100174984 and 20344100175002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344100175431) 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, 64547610 + ... + 64862023.

It is an arithmetic number, because the mean of its divisors is an integer number (5086057435468).

Almost surely, 2^{20344100175031} is an apocalyptic number.

20344100175031 is a deficient number, since it is larger than the sum of its proper divisors (129566841).

20344100175031 is a wasteful number, since it uses less digits than its factorization.

20344100175031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129566840.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 20344100175031 in words is "twenty trillion, three hundred forty-four billion, one hundred million, one hundred seventy-five thousand, thirty-one".