40001144203131 has 32 divisors (see below), whose sum is σ = 54733199689728. Its totient is φ = 25970592111360.

The previous prime is 40001144203081. The next prime is 40001144203193. The reversal of 40001144203131 is 13130244110004.

It is not a de Polignac number, because 40001144203131 - 2¹⁹ = 40001143678843 is a prime.

It is a super-2 number, since 2×40001144203131² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40001144207131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 615398125 + ... + 615463121.

It is an arithmetic number, because the mean of its divisors is an integer number (1710412490304).

Almost surely, 2^{40001144203131} is an apocalyptic number.

40001144203131 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40001144203131 is a deficient number, since it is larger than the sum of its proper divisors (14732055486597).

40001144203131 is a wasteful number, since it uses less digits than its factorization.

40001144203131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73891.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 40001144203131 its reverse (13130244110004), we get a palindrome (53131388313135).

The spelling of 40001144203131 in words is "forty trillion, one billion, one hundred forty-four million, two hundred three thousand, one hundred thirty-one".