20312113274 has 4 divisors (see below), whose sum is σ = 30468169914. Its totient is φ = 10156056636.

The previous prime is 20312113273. The next prime is 20312113321. The reversal of 20312113274 is 47231121302.

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

It can be written as a sum of positive squares in only one way, i.e., 18548533249 + 1763580025 = 136193^2 + 41995^2 .

It is not an unprimeable number, because it can be changed into a prime (20312113273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5078028317 + ... + 5078028320.

Almost surely, 2^20312113274 is an apocalyptic number.

20312113274 is a deficient number, since it is larger than the sum of its proper divisors (10156056640).

20312113274 is a wasteful number, since it uses less digits than its factorization.

20312113274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156056639.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 20312113274 its reverse (47231121302), we get a palindrome (67543234576).

The spelling of 20312113274 in words is "twenty billion, three hundred twelve million, one hundred thirteen thousand, two hundred seventy-four".