231303230210131 has 4 divisors (see below), whose sum is σ = 232581148609264. Its totient is φ = 230025311811000.

The previous prime is 231303230210119. The next prime is 231303230210149. The reversal of 231303230210131 is 131012032303132.

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 231303230210131 - 2³³ = 231294640275539 is a prime.

It is a super-2 number, since 2×231303230210131² (a number of 30 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 = 231303230210096 and 231303230210105.

It is not an unprimeable number, because it can be changed into a prime (231303230270131) 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, 638959199295 + ... + 638959199656.

It is an arithmetic number, because the mean of its divisors is an integer number (58145287152316).

Almost surely, 2^{231303230210131} is an apocalyptic number.

231303230210131 is a deficient number, since it is larger than the sum of its proper divisors (1277918399133).

231303230210131 is a wasteful number, since it uses less digits than its factorization.

231303230210131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277918399132.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 231303230210131 its reverse (131012032303132), we get a palindrome (362315262513263).

The spelling of 231303230210131 in words is "two hundred thirty-one trillion, three hundred three billion, two hundred thirty million, two hundred ten thousand, one hundred thirty-one".