231121020003231 has 32 divisors (see below), whose sum is σ = 319389434726400. Its totient is φ = 148486908810240.

The previous prime is 231121020003221. The next prime is 231121020003239. The reversal of 231121020003231 is 132300020121132.

It is not a de Polignac number, because 231121020003231 - 2¹⁰ = 231121020002207 is a prime.

It is a super-2 number, since 2×231121020003231² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231121020003198 and 231121020003207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231121020003239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125253486 + ... + 127085316.

It is an arithmetic number, because the mean of its divisors is an integer number (9980919835200).

Almost surely, 2^{231121020003231} is an apocalyptic number.

231121020003231 is a deficient number, since it is larger than the sum of its proper divisors (88268414723169).

231121020003231 is a wasteful number, since it uses less digits than its factorization.

231121020003231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834599.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231121020003231 its reverse (132300020121132), we get a palindrome (363421040124363).

The spelling of 231121020003231 in words is "two hundred thirty-one trillion, one hundred twenty-one billion, twenty million, three thousand, two hundred thirty-one".