103111210020121 has 16 divisors (see below), whose sum is σ = 107760903579648. Its totient is φ = 98564142877200.

The previous prime is 103111210020109. The next prime is 103111210020131. The reversal of 103111210020121 is 121020012111301.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 103111210020121 - 2²⁷ = 103111075802393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103111210020095 and 103111210020104.

It is not an unprimeable number, because it can be changed into a prime (103111210020131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30170716 + ... + 33413986.

It is an arithmetic number, because the mean of its divisors is an integer number (6735056473728).

Almost surely, 2^{103111210020121} is an apocalyptic number.

It is an amenable number.

103111210020121 is a deficient number, since it is larger than the sum of its proper divisors (4649693559527).

103111210020121 is a wasteful number, since it uses less digits than its factorization.

103111210020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259092.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 103111210020121 its reverse (121020012111301), we get a palindrome (224131222131422).

The spelling of 103111210020121 in words is "one hundred three trillion, one hundred eleven billion, two hundred ten million, twenty thousand, one hundred twenty-one".