31204540140135 has 32 divisors (see below), whose sum is σ = 49961005009920. Its totient is φ = 16631177593728.

The previous prime is 31204540140077. The next prime is 31204540140139. The reversal of 31204540140135 is 53104104540213.

It is not a de Polignac number, because 31204540140135 - 2¹⁷ = 31204540009063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31204540140096 and 31204540140105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204540140139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166607121 + ... + 166794309.

It is an arithmetic number, because the mean of its divisors is an integer number (1561281406560).

Almost surely, 2^{31204540140135} is an apocalyptic number.

31204540140135 is a deficient number, since it is larger than the sum of its proper divisors (18756464869785).

31204540140135 is a wasteful number, since it uses less digits than its factorization.

31204540140135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194647.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 31204540140135 its reverse (53104104540213), we get a palindrome (84308644680348).

The spelling of 31204540140135 in words is "thirty-one trillion, two hundred four billion, five hundred forty million, one hundred forty thousand, one hundred thirty-five".