201231419999 has 16 divisors (see below), whose sum is σ = 215734037760. Its totient is φ = 187347790080.

The previous prime is 201231419989. The next prime is 201231420017. The reversal of 201231419999 is 999914132102.

It is a cyclic number.

It is not a de Polignac number, because 201231419999 - 2³² = 196936452703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201231419989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883544 + ... + 1087709.

It is an arithmetic number, because the mean of its divisors is an integer number (13483377360).

Almost surely, 2^201231419999 is an apocalyptic number.

201231419999 is a deficient number, since it is larger than the sum of its proper divisors (14502617761).

201231419999 is a wasteful number, since it uses less digits than its factorization.

201231419999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971410.

The product of its (nonzero) digits is 314928, while the sum is 50.

The spelling of 201231419999 in words is "two hundred one billion, two hundred thirty-one million, four hundred nineteen thousand, nine hundred ninety-nine".