31431034112103 has 12 divisors (see below), whose sum is σ = 45443579939368. Its totient is φ = 20934085510800.

The previous prime is 31431034112077. The next prime is 31431034112131. The reversal of 31431034112103 is 30121143013413.

31431034112103 is a `hidden beast` number, since 3 + 1 + 4 + 31 + 0 + 3 + 411 + 210 + 3 = 666.

It is not a de Polignac number, because 31431034112103 - 2⁸ = 31431034111847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431034112143) 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, 1661425900 + ... + 1661444817.

Almost surely, 2^{31431034112103} is an apocalyptic number.

31431034112103 is a deficient number, since it is larger than the sum of its proper divisors (14012545827265).

31431034112103 is a wasteful number, since it uses less digits than its factorization.

31431034112103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322871774 (or 3322871771 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 31431034112103 its reverse (30121143013413), we get a palindrome (61552177125516).

The spelling of 31431034112103 in words is "thirty-one trillion, four hundred thirty-one billion, thirty-four million, one hundred twelve thousand, one hundred three".