20030032001977 has 2 divisors, whose sum is σ = 20030032001978. Its totient is φ = 20030032001976.

The previous prime is 20030032001957. The next prime is 20030032002077. The reversal of 20030032001977 is 77910023003002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14041777639696 + 5988254362281 = 3747236^2 + 2447091^2 .

It is a cyclic number.

It is not a de Polignac number, because 20030032001977 - 2³¹ = 20027884518329 is a prime.

It is not a weakly prime, because it can be changed into another prime (20030032001957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015016000988 + 10015016000989.

It is an arithmetic number, because the mean of its divisors is an integer number (10015016000989).

Almost surely, 2^{20030032001977} is an apocalyptic number.

It is an amenable number.

20030032001977 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030032001977 is an equidigital number, since it uses as much as digits as its factorization.

20030032001977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 34.

Adding to 20030032001977 its reverse (77910023003002), we get a palindrome (97940055004979).

The spelling of 20030032001977 in words is "twenty trillion, thirty billion, thirty-two million, one thousand, nine hundred seventy-seven".