134421111971 has 2 divisors, whose sum is σ = 134421111972. Its totient is φ = 134421111970.

The previous prime is 134421111959. The next prime is 134421112013. The reversal of 134421111971 is 179111124431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134421111971 - 2²² = 134416917667 is a prime.

It is not a weakly prime, because it can be changed into another prime (134421111941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67210555985 + 67210555986.

It is an arithmetic number, because the mean of its divisors is an integer number (67210555986).

Almost surely, 2^134421111971 is an apocalyptic number.

134421111971 is a deficient number, since it is larger than the sum of its proper divisors (1).

134421111971 is an equidigital number, since it uses as much as digits as its factorization.

134421111971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 35.

The spelling of 134421111971 in words is "one hundred thirty-four billion, four hundred twenty-one million, one hundred eleven thousand, nine hundred seventy-one".