2421000203057 has 2 divisors, whose sum is σ = 2421000203058. Its totient is φ = 2421000203056.

The previous prime is 2421000203053. The next prime is 2421000203107. The reversal of 2421000203057 is 7503020001242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2193600928561 + 227399274496 = 1481081^2 + 476864^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421000203057 - 2² = 2421000203053 is a prime.

It is a super-2 number, since 2×2421000203057² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2421000203053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210500101528 + 1210500101529.

It is an arithmetic number, because the mean of its divisors is an integer number (1210500101529).

Almost surely, 2^{2421000203057} is an apocalyptic number.

It is an amenable number.

2421000203057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421000203057 is an equidigital number, since it uses as much as digits as its factorization.

2421000203057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

Adding to 2421000203057 its reverse (7503020001242), we get a palindrome (9924020204299).

The spelling of 2421000203057 in words is "two trillion, four hundred twenty-one billion, two hundred three thousand, fifty-seven".