20312302102 has 32 divisors (see below), whose sum is σ = 31295398464. Its totient is φ = 9884784000.

The previous prime is 20312302097. The next prime is 20312302103. The reversal of 20312302102 is 20120321302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312302103) 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, 5347668 + ... + 5351464.

It is an arithmetic number, because the mean of its divisors is an integer number (977981202).

Almost surely, 2^20312302102 is an apocalyptic number.

20312302102 is a deficient number, since it is larger than the sum of its proper divisors (10983096362).

20312302102 is a wasteful number, since it uses less digits than its factorization.

20312302102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20312302102 its reverse (20120321302), we get a palindrome (40432623404).

The spelling of 20312302102 in words is "twenty billion, three hundred twelve million, three hundred two thousand, one hundred two".