31120010120103 has 32 divisors (see below), whose sum is σ = 41963321874432. Its totient is φ = 20512124467200.

The previous prime is 31120010120083. The next prime is 31120010120119. The reversal of 31120010120103 is 30102101002113.

It is a happy number.

It is not a de Polignac number, because 31120010120103 - 2⁶ = 31120010120039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120010120123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2449809450 + ... + 2449822152.

It is an arithmetic number, because the mean of its divisors is an integer number (1311353808576).

Almost surely, 2^{31120010120103} is an apocalyptic number.

31120010120103 is a deficient number, since it is larger than the sum of its proper divisors (10843311754329).

31120010120103 is a wasteful number, since it uses less digits than its factorization.

31120010120103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20615.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31120010120103 its reverse (30102101002113), we get a palindrome (61222111122216).

The spelling of 31120010120103 in words is "thirty-one trillion, one hundred twenty billion, ten million, one hundred twenty thousand, one hundred three".