121203000101 has 4 divisors (see below), whose sum is σ = 121203954432. Its totient is φ = 121202045772.

The previous prime is 121203000077. The next prime is 121203000119. The reversal of 121203000101 is 101000302121.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 101000302121 = 263 ⋅384031567.

It is a cyclic number.

It is not a de Polignac number, because 121203000101 - 2¹⁴ = 121202983717 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 (121203000161) 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, 250895 + ... + 552588.

It is an arithmetic number, because the mean of its divisors is an integer number (30300988608).

Almost surely, 2^121203000101 is an apocalyptic number.

It is an amenable number.

121203000101 is a deficient number, since it is larger than the sum of its proper divisors (954331).

121203000101 is an equidigital number, since it uses as much as digits as its factorization.

121203000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954330.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 121203000101 its reverse (101000302121), we get a palindrome (222203302222).

The spelling of 121203000101 in words is "one hundred twenty-one billion, two hundred three million, one hundred one", and thus it is an aban number.