20153025031 has 4 divisors (see below), whose sum is σ = 20225779912. Its totient is φ = 20080270152.

The previous prime is 20153025019. The next prime is 20153025059. The reversal of 20153025031 is 13052035102.

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 20153025031 - 2¹⁹ = 20152500743 is a prime.

It is a super-2 number, since 2×20153025031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20153024993 and 20153025011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153025931) 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, 36377025 + ... + 36377578.

It is an arithmetic number, because the mean of its divisors is an integer number (5056444978).

Almost surely, 2^20153025031 is an apocalyptic number.

20153025031 is a deficient number, since it is larger than the sum of its proper divisors (72754881).

20153025031 is an equidigital number, since it uses as much as digits as its factorization.

20153025031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72754880.

The product of its (nonzero) digits is 900, while the sum is 22.

The spelling of 20153025031 in words is "twenty billion, one hundred fifty-three million, twenty-five thousand, thirty-one".