20042953387 has 2 divisors, whose sum is σ = 20042953388. Its totient is φ = 20042953386.

The previous prime is 20042953379. The next prime is 20042953421. The reversal of 20042953387 is 78335924002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20042953387 - 2³ = 20042953379 is a prime.

It is not a weakly prime, because it can be changed into another prime (20042953327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021476693 + 10021476694.

It is an arithmetic number, because the mean of its divisors is an integer number (10021476694).

Almost surely, 2^20042953387 is an apocalyptic number.

20042953387 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042953387 is an equidigital number, since it uses as much as digits as its factorization.

20042953387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 20042953387 in words is "twenty billion, forty-two million, nine hundred fifty-three thousand, three hundred eighty-seven".