31400002344432 has 40 divisors (see below), whose sum is σ = 81661079941200. Its totient is φ = 10396421355520.

The previous prime is 31400002344413. The next prime is 31400002344433. The reversal of 31400002344432 is 23444320000413.

It is a happy number.

It is a super-2 number, since 2×31400002344432² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31400002344432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400002344433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2195183169 + ... + 2195197472.

It is an arithmetic number, because the mean of its divisors is an integer number (2041526998530).

Almost surely, 2^{31400002344432} is an apocalyptic number.

It is an amenable number.

31400002344432 is an abundant number, since it is smaller than the sum of its proper divisors (50261077596768).

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

31400002344432 is a wasteful number, since it uses less digits than its factorization.

31400002344432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390380801 (or 4390380795 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 31400002344432 its reverse (23444320000413), we get a palindrome (54844322344845).

The spelling of 31400002344432 in words is "thirty-one trillion, four hundred billion, two million, three hundred forty-four thousand, four hundred thirty-two".