31120301101103 has 4 divisors (see below), whose sum is σ = 31120334020440. Its totient is φ = 31120268181768.

The previous prime is 31120301101033. The next prime is 31120301101121. The reversal of 31120301101103 is 30110110302113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31120301101103 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 (31120301181103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14998400 + ... + 16946757.

It is an arithmetic number, because the mean of its divisors is an integer number (7780083505110).

Almost surely, 2^{31120301101103} is an apocalyptic number.

31120301101103 is a deficient number, since it is larger than the sum of its proper divisors (32919337).

31120301101103 is an equidigital number, since it uses as much as digits as its factorization.

31120301101103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32919336.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 31120301101103 its reverse (30110110302113), we get a palindrome (61230411403216).

The spelling of 31120301101103 in words is "thirty-one trillion, one hundred twenty billion, three hundred one million, one hundred one thousand, one hundred three".