133013123331 has 12 divisors (see below), whose sum is σ = 194939343816. Its totient is φ = 80614013920.

The previous prime is 133013123329. The next prime is 133013123339. The reversal of 133013123331 is 133321310331.

It is not a de Polignac number, because 133013123331 - 2¹ = 133013123329 is a prime.

It is a super-2 number, since 2×133013123331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133013123339) 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, 183213306 + ... + 183214031.

It is an arithmetic number, because the mean of its divisors is an integer number (16244945318).

Almost surely, 2^133013123331 is an apocalyptic number.

133013123331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133013123331 is a deficient number, since it is larger than the sum of its proper divisors (61926220485).

133013123331 is a wasteful number, since it uses less digits than its factorization.

133013123331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366427362 (or 366427351 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 133013123331 its reverse (133321310331), we get a palindrome (266334433662).

The spelling of 133013123331 in words is "one hundred thirty-three billion, thirteen million, one hundred twenty-three thousand, three hundred thirty-one".