20312113302 has 48 divisors (see below), whose sum is σ = 47479421808. Its totient is φ = 6238739520.

The previous prime is 20312113273. The next prime is 20312113321. The reversal of 20312113302 is 20331121302.

20312113302 is a `hidden beast` number, since 20 + 312 + 1 + 1 + 330 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 54652 + ... + 208832.

It is an arithmetic number, because the mean of its divisors is an integer number (989154621).

Almost surely, 2^20312113302 is an apocalyptic number.

20312113302 is an abundant number, since it is smaller than the sum of its proper divisors (27167308506).

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

20312113302 is a wasteful number, since it uses less digits than its factorization.

20312113302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154765 (or 154762 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20312113302 its reverse (20331121302), we get a palindrome (40643234604).

The spelling of 20312113302 in words is "twenty billion, three hundred twelve million, one hundred thirteen thousand, three hundred two".