20431877302 has 4 divisors (see below), whose sum is σ = 30647815956. Its totient is φ = 10215938650.

The previous prime is 20431877287. The next prime is 20431877303. The reversal of 20431877302 is 20377813402.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20431877302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431877303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5107969324 + ... + 5107969327.

It is an arithmetic number, because the mean of its divisors is an integer number (7661953989).

Almost surely, 2^20431877302 is an apocalyptic number.

20431877302 is a deficient number, since it is larger than the sum of its proper divisors (10215938654).

20431877302 is a wasteful number, since it uses less digits than its factorization.

20431877302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10215938653.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 20431877302 in words is "twenty billion, four hundred thirty-one million, eight hundred seventy-seven thousand, three hundred two".