20312115049 has 8 divisors (see below), whose sum is σ = 21512327328. Its totient is φ = 19112500800.

The previous prime is 20312115001. The next prime is 20312115119. The reversal of 20312115049 is 94051121302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20312115049 - 2²⁷ = 20177897321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312115149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78607 + ... + 216340.

It is an arithmetic number, because the mean of its divisors is an integer number (2689040916).

Almost surely, 2^20312115049 is an apocalyptic number.

It is an amenable number.

20312115049 is a deficient number, since it is larger than the sum of its proper divisors (1200212279).

20312115049 is a wasteful number, since it uses less digits than its factorization.

20312115049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299015.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 20312115049 in words is "twenty billion, three hundred twelve million, one hundred fifteen thousand, forty-nine".