4020100031 has 8 divisors (see below), whose sum is σ = 4220796720. Its totient is φ = 3823541568.

The previous prime is 4020100027. The next prime is 4020100043. The reversal of 4020100031 is 1300010204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4020100031 - 2² = 4020100027 is a prime.

It is a super-2 number, since 2×4020100031² = 32322408518492401922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4020099985 and 4020100021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020100001) 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, 1032566 + ... + 1036451.

It is an arithmetic number, because the mean of its divisors is an integer number (527599590).

Almost surely, 2^4020100031 is an apocalyptic number.

4020100031 is a deficient number, since it is larger than the sum of its proper divisors (200696689).

4020100031 is a wasteful number, since it uses less digits than its factorization.

4020100031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069113.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 4020100031 is about 63404.2587765207. The cubic root of 4020100031 is about 1590.0555115569.

Adding to 4020100031 its reverse (1300010204), we get a palindrome (5320110235).

The spelling of 4020100031 in words is "four billion, twenty million, one hundred thousand, thirty-one".