40340231402121 has 16 divisors (see below), whose sum is σ = 68300920892800. Its totient is φ = 23051560801104.

The previous prime is 40340231402113. The next prime is 40340231402161. The reversal of 40340231402121 is 12120413204304.

40340231402121 is a `hidden beast` number, since 4 + 0 + 3 + 4 + 0 + 231 + 402 + 1 + 21 = 666.

It is not a de Polignac number, because 40340231402121 - 2³ = 40340231402113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40340231402161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106720188706 + ... + 106720189083.

It is an arithmetic number, because the mean of its divisors is an integer number (4268807555800).

Almost surely, 2^{40340231402121} is an apocalyptic number.

It is an amenable number.

40340231402121 is a deficient number, since it is larger than the sum of its proper divisors (27960689490679).

40340231402121 is a wasteful number, since it uses less digits than its factorization.

40340231402121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213440377805 (or 213440377799 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 40340231402121 its reverse (12120413204304), we get a palindrome (52460644606425).

The spelling of 40340231402121 in words is "forty trillion, three hundred forty billion, two hundred thirty-one million, four hundred two thousand, one hundred twenty-one".