30961547103 has 4 divisors (see below), whose sum is σ = 41282062808. Its totient is φ = 20641031400.

The previous prime is 30961547093. The next prime is 30961547117. The reversal of 30961547103 is 30174516903.

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

It is not a de Polignac number, because 30961547103 - 2²⁵ = 30927992671 is a prime.

It is a super-2 number, since 2×30961547103² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30961547173) 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, 5160257848 + ... + 5160257853.

It is an arithmetic number, because the mean of its divisors is an integer number (10320515702).

Almost surely, 2^30961547103 is an apocalyptic number.

30961547103 is a deficient number, since it is larger than the sum of its proper divisors (10320515705).

30961547103 is a wasteful number, since it uses less digits than its factorization.

30961547103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10320515704.

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 30961547103 in words is "thirty billion, nine hundred sixty-one million, five hundred forty-seven thousand, one hundred three".