121100300031 has 16 divisors (see below), whose sum is σ = 162400204800. Its totient is φ = 80267137728.

The previous prime is 121100300029. The next prime is 121100300033. The reversal of 121100300031 is 130003001121.

It is an interprime number because it is at equal distance from previous prime (121100300029) and next prime (121100300033).

It is not a de Polignac number, because 121100300031 - 2¹ = 121100300029 is a prime.

It is a super-2 number, since 2×121100300031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100300033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3245875 + ... + 3282971.

It is an arithmetic number, because the mean of its divisors is an integer number (10150012800).

Almost surely, 2^121100300031 is an apocalyptic number.

121100300031 is a deficient number, since it is larger than the sum of its proper divisors (41299904769).

121100300031 is a wasteful number, since it uses less digits than its factorization.

121100300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43358.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 121100300031 its reverse (130003001121), we get a palindrome (251103301152).

The spelling of 121100300031 in words is "one hundred twenty-one billion, one hundred million, three hundred thousand, thirty-one".