31434041421320 has 16 divisors (see below), whose sum is σ = 70726593198060. Its totient is φ = 12573616568512.

The previous prime is 31434041421253. The next prime is 31434041421361. The reversal of 31434041421320 is 2312414043413.

It can be written as a sum of positive squares in 2 ways, for example, as 27270474628996 + 4163566792324 = 5222114^2 + 2040482^2 .

It is a super-2 number, since 2×31434041421320² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392925517727 + ... + 392925517806.

Almost surely, 2^{31434041421320} is an apocalyptic number.

It is an amenable number.

31434041421320 is an abundant number, since it is smaller than the sum of its proper divisors (39292551776740).

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

31434041421320 is a wasteful number, since it uses less digits than its factorization.

31434041421320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785851035544 (or 785851035540 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 31434041421320 its reverse (2312414043413), we get a palindrome (33746455464733).

The spelling of 31434041421320 in words is "thirty-one trillion, four hundred thirty-four billion, forty-one million, four hundred twenty-one thousand, three hundred twenty".