133100123331 has 32 divisors (see below), whose sum is σ = 214248509440. Its totient is φ = 71799532704.

The previous prime is 133100123327. The next prime is 133100123363. The reversal of 133100123331 is 133321001331.

It is not a de Polignac number, because 133100123331 - 2² = 133100123327 is a prime.

It is a super-2 number, since 2×133100123331² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 133100123298 and 133100123307.

It is not an unprimeable number, because it can be changed into a prime (133100123381) 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, 476455 + ... + 702288.

It is an arithmetic number, because the mean of its divisors is an integer number (6695265920).

Almost surely, 2^133100123331 is an apocalyptic number.

133100123331 is a deficient number, since it is larger than the sum of its proper divisors (81148386109).

133100123331 is a wasteful number, since it uses less digits than its factorization.

133100123331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179055.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 133100123331 its reverse (133321001331), we get a palindrome (266421124662).

The spelling of 133100123331 in words is "one hundred thirty-three billion, one hundred million, one hundred twenty-three thousand, three hundred thirty-one".