31434340422342 has 32 divisors (see below), whose sum is σ = 73859708966400. Its totient is φ = 8792822495520.

The previous prime is 31434340422323. The next prime is 31434340422367. The reversal of 31434340422342 is 24322404343413.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 31434340422342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18318379342 + ... + 18318381057.

It is an arithmetic number, because the mean of its divisors is an integer number (2308115905200).

Almost surely, 2^{31434340422342} is an apocalyptic number.

31434340422342 is an abundant number, since it is smaller than the sum of its proper divisors (42425368544058).

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

31434340422342 is a wasteful number, since it uses less digits than its factorization.

31434340422342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36636760428.

The product of its (nonzero) digits is 663552, while the sum is 39.

Adding to 31434340422342 its reverse (24322404343413), we get a palindrome (55756744765755).

The spelling of 31434340422342 in words is "thirty-one trillion, four hundred thirty-four billion, three hundred forty million, four hundred twenty-two thousand, three hundred forty-two".