133010131231 has 4 divisors (see below), whose sum is σ = 133220924464. Its totient is φ = 132799338000.

The previous prime is 133010131223. The next prime is 133010131277. The reversal of 133010131231 is 132131010331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132131010331 = 97397 ⋅1356623.

It is a cyclic number.

It is not a de Polignac number, because 133010131231 - 2³ = 133010131223 is a prime.

It is a super-2 number, since 2×133010131231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133010131199 and 133010131208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133010131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105395670 + ... + 105396931.

It is an arithmetic number, because the mean of its divisors is an integer number (33305231116).

Almost surely, 2^133010131231 is an apocalyptic number.

133010131231 is a deficient number, since it is larger than the sum of its proper divisors (210793233).

133010131231 is an equidigital number, since it uses as much as digits as its factorization.

133010131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210793232.

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

Adding to 133010131231 its reverse (132131010331), we get a palindrome (265141141562).

The spelling of 133010131231 in words is "one hundred thirty-three billion, ten million, one hundred thirty-one thousand, two hundred thirty-one".