231200132001031 has 4 divisors (see below), whose sum is σ = 231262669232752. Its totient is φ = 231137594769312.

The previous prime is 231200132001011. The next prime is 231200132001049. The reversal of 231200132001031 is 130100231002132.

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 231200132001031 - 2¹³ = 231200131992839 is a prime.

It is a super-2 number, since 2×231200132001031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231200132001001) 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, 31268610315 + ... + 31268617708.

It is an arithmetic number, because the mean of its divisors is an integer number (57815667308188).

Almost surely, 2^{231200132001031} is an apocalyptic number.

231200132001031 is a deficient number, since it is larger than the sum of its proper divisors (62537231721).

231200132001031 is an equidigital number, since it uses as much as digits as its factorization.

231200132001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62537231720.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231200132001031 its reverse (130100231002132), we get a palindrome (361300363003163).

It can be divided in two parts, 231200 and 132001031, that added together give a palindrome (132232231).

The spelling of 231200132001031 in words is "two hundred thirty-one trillion, two hundred billion, one hundred thirty-two million, one thousand, thirty-one".