21134149307 has 2 divisors, whose sum is σ = 21134149308. Its totient is φ = 21134149306.

The previous prime is 21134149277. The next prime is 21134149319. The reversal of 21134149307 is 70394143112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21134149307 - 2²² = 21129955003 is a prime.

It is not a weakly prime, because it can be changed into another prime (21134149207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10567074653 + 10567074654.

It is an arithmetic number, because the mean of its divisors is an integer number (10567074654).

Almost surely, 2^21134149307 is an apocalyptic number.

21134149307 is a deficient number, since it is larger than the sum of its proper divisors (1).

21134149307 is an equidigital number, since it uses as much as digits as its factorization.

21134149307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 21134149307 in words is "twenty-one billion, one hundred thirty-four million, one hundred forty-nine thousand, three hundred seven".