20120573387 has 2 divisors, whose sum is σ = 20120573388. Its totient is φ = 20120573386.

The previous prime is 20120573359. The next prime is 20120573513. The reversal of 20120573387 is 78337502102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20120573387 - 2²² = 20116379083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20120573387.

It is not a weakly prime, because it can be changed into another prime (20120573357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060286693 + 10060286694.

It is an arithmetic number, because the mean of its divisors is an integer number (10060286694).

Almost surely, 2^20120573387 is an apocalyptic number.

20120573387 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120573387 is an equidigital number, since it uses as much as digits as its factorization.

20120573387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 20120573387 in words is "twenty billion, one hundred twenty million, five hundred seventy-three thousand, three hundred eighty-seven".