3990110031 has 8 divisors (see below), whose sum is σ = 5911274160. Its totient is φ = 2660073336.

The previous prime is 3990110021. The next prime is 3990110041. The reversal of 3990110031 is 1300110993.

It is an interprime number because it is at equal distance from previous prime (3990110021) and next prime (3990110041).

It is not a de Polignac number, because 3990110031 - 2¹³ = 3990101839 is a prime.

It is a super-2 number, since 2×3990110031² = 31841956118973641922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 147781853 = 3990110031 / (3 + 9 + 9 + 0 + 1 + 1 + 0 + 0 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 3990109977 and 3990110004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990110021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73890900 + ... + 73890953.

It is an arithmetic number, because the mean of its divisors is an integer number (738909270).

Almost surely, 2^3990110031 is an apocalyptic number.

3990110031 is a deficient number, since it is larger than the sum of its proper divisors (1921164129).

3990110031 is a wasteful number, since it uses less digits than its factorization.

3990110031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147781862 (or 147781856 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 27.

The square root of 3990110031 is about 63167.3177442259. The cubic root of 3990110031 is about 1586.0916933153.

The spelling of 3990110031 in words is "three billion, nine hundred ninety million, one hundred ten thousand, thirty-one".