29901311999 has 16 divisors (see below), whose sum is σ = 32303242944. Its totient is φ = 27514080000.

The previous prime is 29901311987. The next prime is 29901312017. The reversal of 29901311999 is 99911310992.

It is a cyclic number.

It is not a de Polignac number, because 29901311999 - 2²⁰ = 29900263423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29901311999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29901311939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6036974 + ... + 6041924.

It is an arithmetic number, because the mean of its divisors is an integer number (2018952684).

Almost surely, 2^29901311999 is an apocalyptic number.

29901311999 is a deficient number, since it is larger than the sum of its proper divisors (2401930945).

29901311999 is a wasteful number, since it uses less digits than its factorization.

29901311999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6338.

The product of its (nonzero) digits is 354294, while the sum is 53.

The spelling of 29901311999 in words is "twenty-nine billion, nine hundred one million, three hundred eleven thousand, nine hundred ninety-nine".