231011000000133 has 16 divisors (see below), whose sum is σ = 326133651355200. Its totient is φ = 144947867371776.

The previous prime is 231011000000129. The next prime is 231011000000177. The reversal of 231011000000133 is 331000000110132.

It is not a de Polignac number, because 231011000000133 - 2² = 231011000000129 is a prime.

It is a super-2 number, since 2×231011000000133² (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 (231011000000633) 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, 36805191 + ... + 42622107.

It is an arithmetic number, because the mean of its divisors is an integer number (20383353209700).

Almost surely, 2^{231011000000133} is an apocalyptic number.

It is an amenable number.

231011000000133 is a deficient number, since it is larger than the sum of its proper divisors (95122651355067).

231011000000133 is a wasteful number, since it uses less digits than its factorization.

231011000000133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595636.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 231011000000133 its reverse (331000000110132), we get a palindrome (562011000110265).

The spelling of 231011000000133 in words is "two hundred thirty-one trillion, eleven billion, one hundred thirty-three", and thus it is an aban number.