121023401 has 4 divisors (see below), whose sum is σ = 126285312. Its totient is φ = 115761492.

The previous prime is 121023389. The next prime is 121023437. The reversal of 121023401 is 104320121.

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 121023401 - 2¹⁴ = 121007017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121023491) 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, 2630921 + ... + 2630966.

It is an arithmetic number, because the mean of its divisors is an integer number (31571328).

Almost surely, 2^121023401 is an apocalyptic number.

It is an amenable number.

121023401 is a deficient number, since it is larger than the sum of its proper divisors (5261911).

121023401 is an equidigital number, since it uses as much as digits as its factorization.

121023401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5261910.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121023401 is about 11001.0636303950. The cubic root of 121023401 is about 494.6406275016.

Adding to 121023401 its reverse (104320121), we get a palindrome (225343522).

The spelling of 121023401 in words is "one hundred twenty-one million, twenty-three thousand, four hundred one".