133011244431 has 12 divisors (see below), whose sum is σ = 206906380408. Its totient is φ = 81853073424.

The previous prime is 133011244411. The next prime is 133011244459. The reversal of 133011244431 is 134442110331.

It is not a de Polignac number, because 133011244431 - 2⁶ = 133011244367 is a prime.

It is a super-2 number, since 2×133011244431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133011244395 and 133011244404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133011244411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568424005 + ... + 568424238.

Almost surely, 2^133011244431 is an apocalyptic number.

133011244431 is a deficient number, since it is larger than the sum of its proper divisors (73895135977).

133011244431 is a wasteful number, since it uses less digits than its factorization.

133011244431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136848262 (or 1136848259 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 133011244431 its reverse (134442110331), we get a palindrome (267453354762).

The spelling of 133011244431 in words is "one hundred thirty-three billion, eleven million, two hundred forty-four thousand, four hundred thirty-one".