40211131 has 2 divisors, whose sum is σ = 40211132. Its totient is φ = 40211130.

The previous prime is 40211117. The next prime is 40211147. The reversal of 40211131 is 13111204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40211131 - 2⁵ = 40211099 is a prime.

It is a super-2 number, since 2×40211131² = 3233870112598322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40211111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105565 + 20105566.

It is an arithmetic number, because the mean of its divisors is an integer number (20105566).

Almost surely, 2^40211131 is an apocalyptic number.

40211131 is a deficient number, since it is larger than the sum of its proper divisors (1).

40211131 is an equidigital number, since it uses as much as digits as its factorization.

40211131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 40211131 is about 6341.2247239788. The cubic root of 40211131 is about 342.5958486427.

Adding to 40211131 its reverse (13111204), we get a palindrome (53322335).

The spelling of 40211131 in words is "forty million, two hundred eleven thousand, one hundred thirty-one".