133130121012231 has 32 divisors (see below), whose sum is σ = 204427708177920. Its totient is φ = 75490000769664.

The previous prime is 133130121012211. The next prime is 133130121012359. The reversal of 133130121012231 is 132210121031331.

It is a de Polignac number, because none of the positive numbers 2^k-133130121012231 is a prime.

It is a super-2 number, since 2×133130121012231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133130121012211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33133096 + ... + 36933213.

It is an arithmetic number, because the mean of its divisors is an integer number (6388365880560).

Almost surely, 2^{133130121012231} is an apocalyptic number.

133130121012231 is a deficient number, since it is larger than the sum of its proper divisors (71297587165689).

133130121012231 is a wasteful number, since it uses less digits than its factorization.

133130121012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70067015.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 133130121012231 its reverse (132210121031331), we get a palindrome (265340242043562).

The spelling of 133130121012231 in words is "one hundred thirty-three trillion, one hundred thirty billion, one hundred twenty-one million, twelve thousand, two hundred thirty-one".