103030121021 has 16 divisors (see below), whose sum is σ = 108978379776. Its totient is φ = 97247280000.

The previous prime is 103030121009. The next prime is 103030121027. The reversal of 103030121021 is 120121030301.

It is a cyclic number.

It is not a de Polignac number, because 103030121021 - 2⁶ = 103030120957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103030120987 and 103030121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103030121027) 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, 5571731 + ... + 5590191.

It is an arithmetic number, because the mean of its divisors is an integer number (6811148736).

Almost surely, 2^103030121021 is an apocalyptic number.

It is an amenable number.

103030121021 is a deficient number, since it is larger than the sum of its proper divisors (5948258755).

103030121021 is a wasteful number, since it uses less digits than its factorization.

103030121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22924.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 103030121021 its reverse (120121030301), we get a palindrome (223151151322).

The spelling of 103030121021 in words is "one hundred three billion, thirty million, one hundred twenty-one thousand, twenty-one".