31434321044 has 36 divisors (see below), whose sum is σ = 64047352320. Its totient is φ = 13460050800.

The previous prime is 31434321043. The next prime is 31434321059. The reversal of 31434321044 is 44012343413.

It is a happy number.

It is a super-2 number, since 2×31434321044² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31434320998 and 31434321016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434321043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155927 + ... + 295265.

It is an arithmetic number, because the mean of its divisors is an integer number (1779093120).

Almost surely, 2^31434321044 is an apocalyptic number.

It is an amenable number.

31434321044 is an abundant number, since it is smaller than the sum of its proper divisors (32613031276).

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

31434321044 is a wasteful number, since it uses less digits than its factorization.

31434321044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140508 (or 140499 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 31434321044 its reverse (44012343413), we get a palindrome (75446664457).

The spelling of 31434321044 in words is "thirty-one billion, four hundred thirty-four million, three hundred twenty-one thousand, forty-four".