320101232531 has 8 divisors (see below), whose sum is σ = 328760142144. Its totient is φ = 311442719040.

The previous prime is 320101232501. The next prime is 320101232533. The reversal of 320101232531 is 135232101023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320101232531 - 2²⁶ = 320034123667 is a prime.

It is a super-2 number, since 2×320101232531² (a number of 24 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 = 320101232497 and 320101232506.

It is not an unprimeable number, because it can be changed into a prime (320101232533) 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 7 ways as a sum of consecutive naturals, for example, 2341151 + ... + 2474103.

It is an arithmetic number, because the mean of its divisors is an integer number (41095017768).

Almost surely, 2^320101232531 is an apocalyptic number.

320101232531 is a deficient number, since it is larger than the sum of its proper divisors (8658909613).

320101232531 is a wasteful number, since it uses less digits than its factorization.

320101232531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198061.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 320101232531 its reverse (135232101023), we get a palindrome (455333333554).

The spelling of 320101232531 in words is "three hundred twenty billion, one hundred one million, two hundred thirty-two thousand, five hundred thirty-one".