133001113231 has 16 divisors (see below), whose sum is σ = 162478568448. Its totient is φ = 106384766400.

The previous prime is 133001113213. The next prime is 133001113243. The reversal of 133001113231 is 132311100331.

It is not a de Polignac number, because 133001113231 - 2¹¹ = 133001111183 is a prime.

It is a super-2 number, since 2×133001113231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133001113199 and 133001113208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133001113211) 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, 10067715 + ... + 10080916.

It is an arithmetic number, because the mean of its divisors is an integer number (10154910528).

Almost surely, 2^133001113231 is an apocalyptic number.

133001113231 is a deficient number, since it is larger than the sum of its proper divisors (29477455217).

133001113231 is a wasteful number, since it uses less digits than its factorization.

133001113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20148702.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 133001113231 its reverse (132311100331), we get a palindrome (265312213562).

The spelling of 133001113231 in words is "one hundred thirty-three billion, one million, one hundred thirteen thousand, two hundred thirty-one".