133031253513 has 4 divisors (see below), whose sum is σ = 177375004688. Its totient is φ = 88687502340.

The previous prime is 133031253497. The next prime is 133031253557. The reversal of 133031253513 is 315352130331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 133031253513 - 2⁴ = 133031253497 is a prime.

It is a super-2 number, since 2×133031253513² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133031251513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22171875583 + ... + 22171875588.

It is an arithmetic number, because the mean of its divisors is an integer number (44343751172).

Almost surely, 2^133031253513 is an apocalyptic number.

It is an amenable number.

133031253513 is a deficient number, since it is larger than the sum of its proper divisors (44343751175).

133031253513 is an equidigital number, since it uses as much as digits as its factorization.

133031253513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44343751174.

The product of its (nonzero) digits is 12150, while the sum is 30.

Adding to 133031253513 its reverse (315352130331), we get a palindrome (448383383844).

The spelling of 133031253513 in words is "one hundred thirty-three billion, thirty-one million, two hundred fifty-three thousand, five hundred thirteen".