20312101434 has 16 divisors (see below), whose sum is σ = 40699300320. Its totient is φ = 6758184240.

The previous prime is 20312101429. The next prime is 20312101477. The reversal of 20312101434 is 43410121302.

It is a self number, because there is not a number n which added to its sum of digits gives 20312101434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3125544 + ... + 3132035.

It is an arithmetic number, because the mean of its divisors is an integer number (2543706270).

Almost surely, 2^20312101434 is an apocalyptic number.

20312101434 is an abundant number, since it is smaller than the sum of its proper divisors (20387198886).

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

20312101434 is a wasteful number, since it uses less digits than its factorization.

20312101434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258125.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20312101434 its reverse (43410121302), we get a palindrome (63722222736).

The spelling of 20312101434 in words is "twenty billion, three hundred twelve million, one hundred one thousand, four hundred thirty-four".