31434402145 has 16 divisors (see below), whose sum is σ = 37853101440. Its totient is φ = 25059798400.

The previous prime is 31434402119. The next prime is 31434402221. The reversal of 31434402145 is 54120443413.

It is not a de Polignac number, because 31434402145 - 2¹⁹ = 31433877857 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1707540 + ... + 1725850.

It is an arithmetic number, because the mean of its divisors is an integer number (2365818840).

Almost surely, 2^31434402145 is an apocalyptic number.

It is an amenable number.

31434402145 is a deficient number, since it is larger than the sum of its proper divisors (6418699295).

31434402145 is a wasteful number, since it uses less digits than its factorization.

31434402145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19496.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 31434402145 its reverse (54120443413), we get a palindrome (85554845558).

The spelling of 31434402145 in words is "thirty-one billion, four hundred thirty-four million, four hundred two thousand, one hundred forty-five".