20032031123 has 8 divisors (see below), whose sum is σ = 21575292816. Its totient is φ = 18489103200.

The previous prime is 20032031119. The next prime is 20032031137. The reversal of 20032031123 is 32113023002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20032031123 - 2² = 20032031119 is a prime.

It is a super-2 number, since 2×20032031123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20032031153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49013 + ... + 206073.

It is an arithmetic number, because the mean of its divisors is an integer number (2696911602).

Almost surely, 2^20032031123 is an apocalyptic number.

20032031123 is a deficient number, since it is larger than the sum of its proper divisors (1543261693).

20032031123 is a wasteful number, since it uses less digits than its factorization.

20032031123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166885.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20032031123 its reverse (32113023002), we get a palindrome (52145054125).

The spelling of 20032031123 in words is "twenty billion, thirty-two million, thirty-one thousand, one hundred twenty-three".