31431412102102 has 12 divisors (see below), whose sum is σ = 49286117844180. Its totient is φ = 15032414483108.

The previous prime is 31431412102099. The next prime is 31431412102109. The reversal of 31431412102102 is 20120121413413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431412102109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14854163452 + ... + 14854165567.

It is an arithmetic number, because the mean of its divisors is an integer number (4107176487015).

Almost surely, 2^{31431412102102} is an apocalyptic number.

31431412102102 is a deficient number, since it is larger than the sum of its proper divisors (17854705742078).

31431412102102 is a wasteful number, since it uses less digits than its factorization.

31431412102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29708329067 (or 29708329044 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 31431412102102 its reverse (20120121413413), we get a palindrome (51551533515515).

The spelling of 31431412102102 in words is "thirty-one trillion, four hundred thirty-one billion, four hundred twelve million, one hundred two thousand, one hundred two".