133231130321 has 16 divisors (see below), whose sum is σ = 143175550464. Its totient is φ = 123525057024.

The previous prime is 133231130317. The next prime is 133231130327. The reversal of 133231130321 is 123031132331.

It is a cyclic number.

It is not a de Polignac number, because 133231130321 - 2² = 133231130317 is a prime.

It is a super-2 number, since 2×133231130321² (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 (133231130327) 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 15 ways as a sum of consecutive naturals, for example, 956120 + ... + 1086566.

It is an arithmetic number, because the mean of its divisors is an integer number (8948471904).

Almost surely, 2^133231130321 is an apocalyptic number.

It is an amenable number.

133231130321 is a deficient number, since it is larger than the sum of its proper divisors (9944420143).

133231130321 is a wasteful number, since it uses less digits than its factorization.

133231130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131360.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133231130321 its reverse (123031132331), we get a palindrome (256262262652).

The spelling of 133231130321 in words is "one hundred thirty-three billion, two hundred thirty-one million, one hundred thirty thousand, three hundred twenty-one".