21030141479 has 2 divisors, whose sum is σ = 21030141480. Its totient is φ = 21030141478.

The previous prime is 21030141427. The next prime is 21030141527. The reversal of 21030141479 is 97414103012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21030141479 - 2²⁸ = 20761706023 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21030141409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10515070739 + 10515070740.

It is an arithmetic number, because the mean of its divisors is an integer number (10515070740).

Almost surely, 2^21030141479 is an apocalyptic number.

21030141479 is a deficient number, since it is larger than the sum of its proper divisors (1).

21030141479 is an equidigital number, since it uses as much as digits as its factorization.

21030141479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 21030141479 in words is "twenty-one billion, thirty million, one hundred forty-one thousand, four hundred seventy-nine".