421111101111137 has 2 divisors, whose sum is σ = 421111101111138. Its totient is φ = 421111101111136.

The previous prime is 421111101111089. The next prime is 421111101111139. The reversal of 421111101111137 is 731111101111124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288399226547041 + 132711874564096 = 16982321^2 + 11520064^2 .

It is a cyclic number.

It is not a de Polignac number, because 421111101111137 - 2¹⁰ = 421111101110113 is a prime.

Together with 421111101111139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (421111101111139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210555550555568 + 210555550555569.

It is an arithmetic number, because the mean of its divisors is an integer number (210555550555569).

Almost surely, 2^{421111101111137} is an apocalyptic number.

It is an amenable number.

421111101111137 is a deficient number, since it is larger than the sum of its proper divisors (1).

421111101111137 is an equidigital number, since it uses as much as digits as its factorization.

421111101111137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 26.

The spelling of 421111101111137 in words is "four hundred twenty-one trillion, one hundred eleven billion, one hundred one million, one hundred eleven thousand, one hundred thirty-seven".