40431234012135 has 16 divisors (see below), whose sum is σ = 65318032425984. Its totient is φ = 21353972137632.

The previous prime is 40431234012121. The next prime is 40431234012137. The reversal of 40431234012135 is 53121043213404.

It is not a de Polignac number, because 40431234012135 - 2²³ = 40431225623527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40431234012096 and 40431234012105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40431234012137) 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, 13084540207 + ... + 13084543296.

It is an arithmetic number, because the mean of its divisors is an integer number (4082377026624).

Almost surely, 2^{40431234012135} is an apocalyptic number.

40431234012135 is a deficient number, since it is larger than the sum of its proper divisors (24886798413849).

40431234012135 is a wasteful number, since it uses less digits than its factorization.

40431234012135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26169083614.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 40431234012135 its reverse (53121043213404), we get a palindrome (93552277225539).

The spelling of 40431234012135 in words is "forty trillion, four hundred thirty-one billion, two hundred thirty-four million, twelve thousand, one hundred thirty-five".