20312301213 has 24 divisors (see below), whose sum is σ = 31603253760. Its totient is φ = 12534936480.

The previous prime is 20312301209. The next prime is 20312301241. The reversal of 20312301213 is 31210321302.

It is not a de Polignac number, because 20312301213 - 2² = 20312301209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312301283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1576278 + ... + 1589111.

It is an arithmetic number, because the mean of its divisors is an integer number (1316802240).

Almost surely, 2^20312301213 is an apocalyptic number.

20312301213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20312301213 is a deficient number, since it is larger than the sum of its proper divisors (11290952547).

20312301213 is a wasteful number, since it uses less digits than its factorization.

20312301213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165449 (or 3165446 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20312301213 its reverse (31210321302), we get a palindrome (51522622515).

The spelling of 20312301213 in words is "twenty billion, three hundred twelve million, three hundred one thousand, two hundred thirteen".