16141238021 has 2 divisors, whose sum is σ = 16141238022. Its totient is φ = 16141238020.

The previous prime is 16141237991. The next prime is 16141238039. The reversal of 16141238021 is 12083214161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11553885121 + 4587352900 = 107489^2 + 67730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16141238021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16141238521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8070619010 + 8070619011.

It is an arithmetic number, because the mean of its divisors is an integer number (8070619011).

Almost surely, 2^16141238021 is an apocalyptic number.

It is an amenable number.

16141238021 is a deficient number, since it is larger than the sum of its proper divisors (1).

16141238021 is an equidigital number, since it uses as much as digits as its factorization.

16141238021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 16141238021 in words is "sixteen billion, one hundred forty-one million, two hundred thirty-eight thousand, twenty-one".