133004001231 has 6 divisors (see below), whose sum is σ = 192116890680. Its totient is φ = 88669334148.

The previous prime is 133004001133. The next prime is 133004001239. The reversal of 133004001231 is 132100400331.

133004001231 is a `hidden beast` number, since 1 + 3 + 30 + 0 + 400 + 1 + 231 = 666.

It is not a de Polignac number, because 133004001231 - 2⁹ = 133004000719 is a prime.

It is a super-2 number, since 2×133004001231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133004001239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7389111171 + ... + 7389111188.

It is an arithmetic number, because the mean of its divisors is an integer number (32019481780).

Almost surely, 2^133004001231 is an apocalyptic number.

133004001231 is a deficient number, since it is larger than the sum of its proper divisors (59112889449).

133004001231 is a wasteful number, since it uses less digits than its factorization.

133004001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14778222365 (or 14778222362 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 133004001231 its reverse (132100400331), we get a palindrome (265104401562).

The spelling of 133004001231 in words is "one hundred thirty-three billion, four million, one thousand, two hundred thirty-one".