20123514307 has 16 divisors (see below), whose sum is σ = 21833280000. Its totient is φ = 18437053824.

The previous prime is 20123514283. The next prime is 20123514353. The reversal of 20123514307 is 70341532102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20123514307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123514377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3307294 + ... + 3313372.

It is an arithmetic number, because the mean of its divisors is an integer number (1364580000).

Almost surely, 2^20123514307 is an apocalyptic number.

20123514307 is a deficient number, since it is larger than the sum of its proper divisors (1709765693).

20123514307 is a wasteful number, since it uses less digits than its factorization.

20123514307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950.

The product of its (nonzero) digits is 5040, while the sum is 28.

The spelling of 20123514307 in words is "twenty billion, one hundred twenty-three million, five hundred fourteen thousand, three hundred seven".