40401131361 has 16 divisors (see below), whose sum is σ = 54056813184. Its totient is φ = 26839822464.

The previous prime is 40401131317. The next prime is 40401131383. The reversal of 40401131361 is 16313110404.

It is not a de Polignac number, because 40401131361 - 2⁶ = 40401131297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40401121361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5665180 + ... + 5672306.

It is an arithmetic number, because the mean of its divisors is an integer number (3378550824).

Almost surely, 2^40401131361 is an apocalyptic number.

It is an amenable number.

40401131361 is a deficient number, since it is larger than the sum of its proper divisors (13655681823).

40401131361 is a wasteful number, since it uses less digits than its factorization.

40401131361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13480.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 40401131361 its reverse (16313110404), we get a palindrome (56714241765).

The spelling of 40401131361 in words is "forty billion, four hundred one million, one hundred thirty-one thousand, three hundred sixty-one".