121020103021 has 16 divisors (see below), whose sum is σ = 125337254400. Its totient is φ = 116729452800.

The previous prime is 121020102991. The next prime is 121020103051. The reversal of 121020103021 is 120301020121.

It is an interprime number because it is at equal distance from previous prime (121020102991) and next prime (121020103051).

It is a cyclic number.

It is not a de Polignac number, because 121020103021 - 2¹³ = 121020094829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121020102992 and 121020103010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020103051) 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, 12183585 + ... + 12193513.

It is an arithmetic number, because the mean of its divisors is an integer number (7833578400).

Almost surely, 2^121020103021 is an apocalyptic number.

It is an amenable number.

121020103021 is a deficient number, since it is larger than the sum of its proper divisors (4317151379).

121020103021 is an equidigital number, since it uses as much as digits as its factorization.

121020103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11220.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 121020103021 its reverse (120301020121), we get a palindrome (241321123142).

The spelling of 121020103021 in words is "one hundred twenty-one billion, twenty million, one hundred three thousand, twenty-one".