121230020101 has 8 divisors (see below), whose sum is σ = 128368623960. Its totient is φ = 114092241408.

The previous prime is 121230020059. The next prime is 121230020123. The reversal of 121230020101 is 101020032121.

It can be written as a sum of positive squares in 4 ways, for example, as 29041272225 + 92188747876 = 170415^2 + 303626^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121230020101 - 2²³ = 121221631493 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 (121230030101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110065 + ... + 504553.

It is an arithmetic number, because the mean of its divisors is an integer number (16046077995).

Almost surely, 2^121230020101 is an apocalyptic number.

It is an amenable number.

121230020101 is a deficient number, since it is larger than the sum of its proper divisors (7138603859).

121230020101 is a wasteful number, since it uses less digits than its factorization.

121230020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412583.

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

Adding to 121230020101 its reverse (101020032121), we get a palindrome (222250052222).

The spelling of 121230020101 in words is "one hundred twenty-one billion, two hundred thirty million, twenty thousand, one hundred one".