231000122031133 has 32 divisors (see below), whose sum is σ = 302723523648000. Its totient is φ = 174822834751488.

The previous prime is 231000122031067. The next prime is 231000122031149. The reversal of 231000122031133 is 331130221000132.

It is not a de Polignac number, because 231000122031133 - 2¹³ = 231000122022941 is a prime.

It is a super-2 number, since 2×231000122031133² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231000122037133) 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, 1126101028 + ... + 1126306141.

It is an arithmetic number, because the mean of its divisors is an integer number (9460110114000).

Almost surely, 2^{231000122031133} is an apocalyptic number.

231000122031133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

231000122031133 is a deficient number, since it is larger than the sum of its proper divisors (71723401616867).

231000122031133 is a wasteful number, since it uses less digits than its factorization.

231000122031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252407226 (or 2252407212 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231000122031133 its reverse (331130221000132), we get a palindrome (562130343031265).

The spelling of 231000122031133 in words is "two hundred thirty-one trillion, one hundred twenty-two million, thirty-one thousand, one hundred thirty-three".