31434314131231 has 16 divisors (see below), whose sum is σ = 35190357310080. Its totient is φ = 27835758681120.

The previous prime is 31434314131193. The next prime is 31434314131243. The reversal of 31434314131231 is 13213141343413.

It is a cyclic number.

It is not a de Polignac number, because 31434314131231 - 2¹⁵ = 31434314098463 is a prime.

It is a super-2 number, since 2×31434314131231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434314131271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193869345 + ... + 194031418.

It is an arithmetic number, because the mean of its divisors is an integer number (2199397331880).

Almost surely, 2^{31434314131231} is an apocalyptic number.

31434314131231 is a deficient number, since it is larger than the sum of its proper divisors (3756043178849).

31434314131231 is a wasteful number, since it uses less digits than its factorization.

31434314131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387900966.

The product of its digits is 31104, while the sum is 34.

Adding to 31434314131231 its reverse (13213141343413), we get a palindrome (44647455474644).

The spelling of 31434314131231 in words is "thirty-one trillion, four hundred thirty-four billion, three hundred fourteen million, one hundred thirty-one thousand, two hundred thirty-one".