1220431140324 has 72 divisors (see below), whose sum is σ = 3366313528032. Its totient is φ = 369730673280.

The previous prime is 1220431140319. The next prime is 1220431140437. The reversal of 1220431140324 is 4230411340221.

1220431140324 is a `hidden beast` number, since 1 + 2 + 20 + 4 + 311 + 4 + 0 + 324 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1115847 + ... + 1919889.

It is an arithmetic number, because the mean of its divisors is an integer number (46754354556).

Almost surely, 2^{1220431140324} is an apocalyptic number.

It is an amenable number.

1220431140324 is an abundant number, since it is smaller than the sum of its proper divisors (2145882387708).

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

1220431140324 is a wasteful number, since it uses less digits than its factorization.

1220431140324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807897 (or 807892 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1220431140324 its reverse (4230411340221), we get a palindrome (5450842480545).

The spelling of 1220431140324 in words is "one trillion, two hundred twenty billion, four hundred thirty-one million, one hundred forty thousand, three hundred twenty-four".