2111002451 has 2 divisors, whose sum is σ = 2111002452. Its totient is φ = 2111002450.

The previous prime is 2111002409. The next prime is 2111002469. The reversal of 2111002451 is 1542001112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111002451 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111002351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055501225 + 1055501226.

It is an arithmetic number, because the mean of its divisors is an integer number (1055501226).

Almost surely, 2^2111002451 is an apocalyptic number.

2111002451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111002451 is an equidigital number, since it uses as much as digits as its factorization.

2111002451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 2111002451 is about 45945.6467034691. The cubic root of 2111002451 is about 1282.8117006501.

Adding to 2111002451 its reverse (1542001112), we get a palindrome (3653003563).

The spelling of 2111002451 in words is "two billion, one hundred eleven million, two thousand, four hundred fifty-one".