121231103101 has 4 divisors (see below), whose sum is σ = 121805658304. Its totient is φ = 120656547900.

The previous prime is 121231103099. The next prime is 121231103129. The reversal of 121231103101 is 101301132121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121231103101 - 2¹ = 121231103099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121234103101) 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, 287277285 + ... + 287277706.

It is an arithmetic number, because the mean of its divisors is an integer number (30451414576).

Almost surely, 2^121231103101 is an apocalyptic number.

It is an amenable number.

121231103101 is a deficient number, since it is larger than the sum of its proper divisors (574555203).

121231103101 is an equidigital number, since it uses as much as digits as its factorization.

121231103101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574555202.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121231103101 its reverse (101301132121), we get a palindrome (222532235222).

The spelling of 121231103101 in words is "one hundred twenty-one billion, two hundred thirty-one million, one hundred three thousand, one hundred one".