1420371091971 has 24 divisors (see below), whose sum is σ = 2220681743280. Its totient is φ = 869637577536.

The previous prime is 1420371091943. The next prime is 1420371091973. The reversal of 1420371091971 is 1791901730241.

It is a happy number.

1420371091971 is a `hidden beast` number, since 1 + 420 + 3 + 71 + 0 + 91 + 9 + 71 = 666.

It is not a de Polignac number, because 1420371091971 - 2¹⁰ = 1420371090947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420371091973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30788941 + ... + 30835038.

It is an arithmetic number, because the mean of its divisors is an integer number (92528405970).

Almost surely, 2^{1420371091971} is an apocalyptic number.

1420371091971 is a deficient number, since it is larger than the sum of its proper divisors (800310651309).

1420371091971 is a wasteful number, since it uses less digits than its factorization.

1420371091971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61624195 (or 61624192 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The spelling of 1420371091971 in words is "one trillion, four hundred twenty billion, three hundred seventy-one million, ninety-one thousand, nine hundred seventy-one".