313122001332 has 96 divisors (see below), whose sum is σ = 849447131904. Its totient is φ = 87923404800.

The previous prime is 313122001331. The next prime is 313122001333. The reversal of 313122001332 is 233100221313.

It is an interprime number because it is at equal distance from previous prime (313122001331) and next prime (313122001333).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 313122001299 and 313122001308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313122001331) 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, 1632232 + ... + 1813952.

It is an arithmetic number, because the mean of its divisors is an integer number (8848407624).

Almost surely, 2^313122001332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313122001332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424723565952).

313122001332 is an abundant number, since it is smaller than the sum of its proper divisors (536325130572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313122001332 is a wasteful number, since it uses less digits than its factorization.

313122001332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182089 (or 182087 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 313122001332 its reverse (233100221313), we get a palindrome (546222222645).

The spelling of 313122001332 in words is "three hundred thirteen billion, one hundred twenty-two million, one thousand, three hundred thirty-two".