31321212103103 has 8 divisors (see below), whose sum is σ = 35714685294288. Its totient is φ = 27211188795264.

The previous prime is 31321212103039. The next prime is 31321212103109. The reversal of 31321212103103 is 30130121212313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31321212103103 - 2⁶ = 31321212103039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321212103109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70862470601 + ... + 70862471042.

It is an arithmetic number, because the mean of its divisors is an integer number (4464335661786).

Almost surely, 2^{31321212103103} is an apocalyptic number.

31321212103103 is a deficient number, since it is larger than the sum of its proper divisors (4393473191185).

31321212103103 is a wasteful number, since it uses less digits than its factorization.

31321212103103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141724941673.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31321212103103 its reverse (30130121212313), we get a palindrome (61451333315416).

The spelling of 31321212103103 in words is "thirty-one trillion, three hundred twenty-one billion, two hundred twelve million, one hundred three thousand, one hundred three".