202123133031 has 8 divisors (see below), whose sum is σ = 269499981184. Its totient is φ = 134747520120.

The previous prime is 202123132999. The next prime is 202123133053. The reversal of 202123133031 is 130331321202.

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

It is not a de Polignac number, because 202123133031 - 2⁵ = 202123132999 is a prime.

It is a super-2 number, since 2×202123133031² (a number of 23 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 = 202123132989 and 202123133007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202123133081) 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, 186480 + ... + 662586.

It is an arithmetic number, because the mean of its divisors is an integer number (33687497648).

Almost surely, 2^202123133031 is an apocalyptic number.

202123133031 is a deficient number, since it is larger than the sum of its proper divisors (67376848153).

202123133031 is a wasteful number, since it uses less digits than its factorization.

202123133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617621.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 202123133031 its reverse (130331321202), we get a palindrome (332454454233).

The spelling of 202123133031 in words is "two hundred two billion, one hundred twenty-three million, one hundred thirty-three thousand, thirty-one".