133630731031 has 16 divisors (see below), whose sum is σ = 153283244800. Its totient is φ = 114119549568.

The previous prime is 133630731019. The next prime is 133630731037. The reversal of 133630731031 is 130137036331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133630731031 - 2¹¹ = 133630728983 is a prime.

It is a super-2 number, since 2×133630731031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133630730984 and 133630731002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133630731037) 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, 2210080 + ... + 2269738.

It is an arithmetic number, because the mean of its divisors is an integer number (9580202800).

Almost surely, 2^133630731031 is an apocalyptic number.

133630731031 is a deficient number, since it is larger than the sum of its proper divisors (19652513769).

133630731031 is an equidigital number, since it uses as much as digits as its factorization.

133630731031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60838.

The product of its (nonzero) digits is 10206, while the sum is 31.

Adding to 133630731031 its reverse (130137036331), we get a palindrome (263767767362).

The spelling of 133630731031 in words is "one hundred thirty-three billion, six hundred thirty million, seven hundred thirty-one thousand, thirty-one".