20112312302 has 4 divisors (see below), whose sum is σ = 30168468456. Its totient is φ = 10056156150.

The previous prime is 20112312289. The next prime is 20112312329. The reversal of 20112312302 is 20321321102.

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

It is a super-2 number, since 2×20112312302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5028078074 + ... + 5028078077.

It is an arithmetic number, because the mean of its divisors is an integer number (7542117114).

Almost surely, 2^20112312302 is an apocalyptic number.

20112312302 is a deficient number, since it is larger than the sum of its proper divisors (10056156154).

20112312302 is a wasteful number, since it uses less digits than its factorization.

20112312302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056156153.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20112312302 its reverse (20321321102), we get a palindrome (40433633404).

The spelling of 20112312302 in words is "twenty billion, one hundred twelve million, three hundred twelve thousand, three hundred two".