133023431000 has 64 divisors (see below), whose sum is σ = 313257840480. Its totient is φ = 52870396800.

The previous prime is 133023430993. The next prime is 133023431059. The reversal of 133023431000 is 134320331.

It is a super-2 number, since 2×133023431000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266642 + ... + 580641.

Almost surely, 2^133023431000 is an apocalyptic number.

133023431000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133023431000 is an abundant number, since it is smaller than the sum of its proper divisors (180234409480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133023431000 is a wasteful number, since it uses less digits than its factorization.

133023431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847461 (or 847447 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 133023431000 its reverse (134320331), we get a palindrome (133157751331).

The spelling of 133023431000 in words is "one hundred thirty-three billion, twenty-three million, four hundred thirty-one thousand".