203130023131 has 16 divisors (see below), whose sum is σ = 244566950400. Its totient is φ = 164812684608.

The previous prime is 203130023099. The next prime is 203130023149. The reversal of 203130023131 is 131320031302.

It is a cyclic number.

It is not a de Polignac number, because 203130023131 - 2⁵ = 203130023099 is a prime.

It is a super-2 number, since 2×203130023131² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203130023099 and 203130023108.

It is not an unprimeable number, because it can be changed into a prime (203130023171) 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, 461746 + ... + 787063.

It is an arithmetic number, because the mean of its divisors is an integer number (15285434400).

Almost surely, 2^203130023131 is an apocalyptic number.

203130023131 is a deficient number, since it is larger than the sum of its proper divisors (41436927269).

203130023131 is a wasteful number, since it uses less digits than its factorization.

203130023131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250058.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 203130023131 its reverse (131320031302), we get a palindrome (334450054433).

The spelling of 203130023131 in words is "two hundred three billion, one hundred thirty million, twenty-three thousand, one hundred thirty-one".