30121111112103 has 12 divisors (see below), whose sum is σ = 47463569025288. Its totient is φ = 18255218855760.

The previous prime is 30121111112087. The next prime is 30121111112137.

30121111112103 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 30121111112103 - 2⁴ = 30121111112087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121111112153) 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, 152126823700 + ... + 152126823897.

It is an arithmetic number, because the mean of its divisors is an integer number (3955297418774).

Almost surely, 2^{30121111112103} is an apocalyptic number.

30121111112103 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

30121111112103 is a deficient number, since it is larger than the sum of its proper divisors (17342457913185).

30121111112103 is a wasteful number, since it uses less digits than its factorization.

30121111112103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304253647614 (or 304253647611 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

It can be divided in two parts, 3012111 and 1112103, that added together give a palindrome (4124214).

The spelling of 30121111112103 in words is "thirty trillion, one hundred twenty-one billion, one hundred eleven million, one hundred twelve thousand, one hundred three".