311229089472 has 112 divisors (see below), whose sum is σ = 973549244160. Its totient is φ = 85856289792.

The previous prime is 311229089461. The next prime is 311229089473. The reversal of 311229089472 is 274980922113.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×311229089472² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (311229089473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3953598 + ... + 4031549.

Almost surely, 2^311229089472 is an apocalyptic number.

311229089472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

311229089472 is an abundant number, since it is smaller than the sum of its proper divisors (662320154688).

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

311229089472 is a wasteful number, since it uses less digits than its factorization.

311229089472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985198 (or 7985188 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 311229089472 in words is "three hundred eleven billion, two hundred twenty-nine million, eighty-nine thousand, four hundred seventy-two".