20312122121302 has 24 divisors (see below), whose sum is σ = 33596817542568. Its totient is φ = 9203285039520.

The previous prime is 20312122121267. The next prime is 20312122121311.

20312122121302 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134004748 + ... + 134156239.

It is an arithmetic number, because the mean of its divisors is an integer number (1399867397607).

Almost surely, 2^{20312122121302} is an apocalyptic number.

20312122121302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20312122121302 is a deficient number, since it is larger than the sum of its proper divisors (13284695421266).

20312122121302 is a wasteful number, since it uses less digits than its factorization.

20312122121302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268161324 (or 268161313 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Multiplying 20312122121302 by its sum of digits (22), we get a palindrome (446866686668644).

It can be divided in two parts, 2031212 and 2121302, that added together give a palindrome (4152514).

The spelling of 20312122121302 in words is "twenty trillion, three hundred twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, three hundred two".