4011992031 has 4 divisors (see below), whose sum is σ = 5349322712. Its totient is φ = 2674661352.

The previous prime is 4011992009. The next prime is 4011992057. The reversal of 4011992031 is 1302991104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4011992031 - 2⁶ = 4011991967 is a prime.

It is a super-2 number, since 2×4011992031² = 32192160113615009922, which contains 22 as substring.

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 4011992031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011992531) 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 3 ways as a sum of consecutive naturals, for example, 668665336 + ... + 668665341.

It is an arithmetic number, because the mean of its divisors is an integer number (1337330678).

Almost surely, 2^4011992031 is an apocalyptic number.

4011992031 is a deficient number, since it is larger than the sum of its proper divisors (1337330681).

4011992031 is a wasteful number, since it uses less digits than its factorization.

4011992031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337330680.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 4011992031 is about 63340.2875822332. The cubic root of 4011992031 is about 1588.9858161953.

The spelling of 4011992031 in words is "four billion, eleven million, nine hundred ninety-two thousand, thirty-one".