31235531124342 has 32 divisors (see below), whose sum is σ = 62507984458752. Its totient is φ = 10405690648704.

The previous prime is 31235531124323. The next prime is 31235531124349. The reversal of 31235531124342 is 24342113553213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31235531124342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31235531124349) 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, 225218863 + ... + 225357509.

It is an arithmetic number, because the mean of its divisors is an integer number (1953374514336).

Almost surely, 2^{31235531124342} is an apocalyptic number.

31235531124342 is an abundant number, since it is smaller than the sum of its proper divisors (31272453334410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31235531124342 is a wasteful number, since it uses less digits than its factorization.

31235531124342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160572.

The product of its digits is 259200, while the sum is 39.

Adding to 31235531124342 its reverse (24342113553213), we get a palindrome (55577644677555).

The spelling of 31235531124342 in words is "thirty-one trillion, two hundred thirty-five billion, five hundred thirty-one million, one hundred twenty-four thousand, three hundred forty-two".