231321030013131 has 16 divisors (see below), whose sum is σ = 318378412922880. Its totient is φ = 149238867346560.

The previous prime is 231321030013097. The next prime is 231321030013159. The reversal of 231321030013131 is 131310030123132.

It is not a de Polignac number, because 231321030013131 - 2⁶ = 231321030013067 is a prime.

It is a super-2 number, since 2×231321030013131² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231321030013831) 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, 24339426 + ... + 32481528.

It is an arithmetic number, because the mean of its divisors is an integer number (19898650807680).

Almost surely, 2^{231321030013131} is an apocalyptic number.

231321030013131 is a deficient number, since it is larger than the sum of its proper divisors (87057382909749).

231321030013131 is a wasteful number, since it uses less digits than its factorization.

231321030013131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8447626.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 231321030013131 its reverse (131310030123132), we get a palindrome (362631060136263).

The spelling of 231321030013131 in words is "two hundred thirty-one trillion, three hundred twenty-one billion, thirty million, thirteen thousand, one hundred thirty-one".