231129033 has 16 divisors (see below), whose sum is σ = 315598080. Its totient is φ = 150391296.

The previous prime is 231129011. The next prime is 231129071. The reversal of 231129033 is 330921132.

It is not a de Polignac number, because 231129033 - 2⁶ = 231128969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231128994 and 231129012.

It is not an unprimeable number, because it can be changed into a prime (231129233) 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, 53913 + ... + 58041.

It is an arithmetic number, because the mean of its divisors is an integer number (19724880).

Almost surely, 2^231129033 is an apocalyptic number.

It is an amenable number.

231129033 is a deficient number, since it is larger than the sum of its proper divisors (84469047).

231129033 is a wasteful number, since it uses less digits than its factorization.

231129033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576.

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

The square root of 231129033 is about 15202.9284350088. The cubic root of 231129033 is about 613.6934679687.

The spelling of 231129033 in words is "two hundred thirty-one million, one hundred twenty-nine thousand, thirty-three".