20310005392 has 10 divisors (see below), whose sum is σ = 39350635478. Its totient is φ = 10155002688.

The previous prime is 20310005371. The next prime is 20310005413. The reversal of 20310005392 is 29350001302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20310005371) and next prime (20310005413).

It can be written as a sum of positive squares in only one way, i.e., 16204271616 + 4105733776 = 127296^2 + 64076^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634687653 + ... + 634687684.

Almost surely, 2^20310005392 is an apocalyptic number.

It is an amenable number.

20310005392 is a deficient number, since it is larger than the sum of its proper divisors (19040630086).

20310005392 is a wasteful number, since it uses less digits than its factorization.

20310005392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269375345 (or 1269375339 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 20310005392 its reverse (29350001302), we get a palindrome (49660006694).

The spelling of 20310005392 in words is "twenty billion, three hundred ten million, five thousand, three hundred ninety-two".