40131201121 has 32 divisors (see below), whose sum is σ = 45836752896. Its totient is φ = 34810776000.

The previous prime is 40131201107. The next prime is 40131201151. The reversal of 40131201121 is 12110213104.

It is not a de Polignac number, because 40131201121 - 2⁹ = 40131200609 is a prime.

It is a super-2 number, since 2×40131201121² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40131201095 and 40131201104.

It is not an unprimeable number, because it can be changed into a prime (40131201151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14693326 + ... + 14696056.

It is an arithmetic number, because the mean of its divisors is an integer number (1432398528).

Almost surely, 2^40131201121 is an apocalyptic number.

It is an amenable number.

40131201121 is a deficient number, since it is larger than the sum of its proper divisors (5705551775).

40131201121 is a wasteful number, since it uses less digits than its factorization.

40131201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 40131201121 its reverse (12110213104), we get a palindrome (52241414225).

The spelling of 40131201121 in words is "forty billion, one hundred thirty-one million, two hundred one thousand, one hundred twenty-one".