40401131099 has 16 divisors (see below), whose sum is σ = 49084097280. Its totient is φ = 32482101600.

The previous prime is 40401131087. The next prime is 40401131101. The reversal of 40401131099 is 99013110404.

It is a cyclic number.

It is not a de Polignac number, because 40401131099 - 2²⁸ = 40132695643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40401131059) 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, 1490369 + ... + 1517234.

It is an arithmetic number, because the mean of its divisors is an integer number (3067756080).

Almost surely, 2^40401131099 is an apocalyptic number.

40401131099 is a deficient number, since it is larger than the sum of its proper divisors (8682966181).

40401131099 is a wasteful number, since it uses less digits than its factorization.

40401131099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007730.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 40401131099 in words is "forty billion, four hundred one million, one hundred thirty-one thousand, ninety-nine".