4023121457 has 2 divisors, whose sum is σ = 4023121458. Its totient is φ = 4023121456.

The previous prime is 4023121423. The next prime is 4023121489. The reversal of 4023121457 is 7541213204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3868964401 + 154157056 = 62201^2 + 12416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4023121457 is a prime.

It is not a weakly prime, because it can be changed into another prime (4023321457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2011560728 + 2011560729.

It is an arithmetic number, because the mean of its divisors is an integer number (2011560729).

Almost surely, 2^4023121457 is an apocalyptic number.

It is an amenable number.

4023121457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4023121457 is an equidigital number, since it uses as much as digits as its factorization.

4023121457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 4023121457 is about 63428.0809815337. The cubic root of 4023121457 is about 1590.4537630051.

The spelling of 4023121457 in words is "four billion, twenty-three million, one hundred twenty-one thousand, four hundred fifty-seven".