40101031 has 2 divisors, whose sum is σ = 40101032. Its totient is φ = 40101030.

The previous prime is 40100999. The next prime is 40101049. The reversal of 40101031 is 13010104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40101031 - 2⁵ = 40100999 is a prime.

It is a super-2 number, since 2×40101031² = 3216185374525922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40100999 and 40101017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40101071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20050515 + 20050516.

It is an arithmetic number, because the mean of its divisors is an integer number (20050516).

Almost surely, 2^40101031 is an apocalyptic number.

40101031 is a deficient number, since it is larger than the sum of its proper divisors (1).

40101031 is an equidigital number, since it uses as much as digits as its factorization.

40101031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 40101031 is about 6332.5374850845. The cubic root of 40101031 is about 342.2828815556.

Adding to 40101031 its reverse (13010104), we get a palindrome (53111135).

It can be divided in two parts, 4010103 and 1, that added together give a palindrome (4010104).

The spelling of 40101031 in words is "forty million, one hundred one thousand, thirty-one".