121301401 has 4 divisors (see below), whose sum is σ = 130632292. Its totient is φ = 111970512.

The previous prime is 121301387. The next prime is 121301449. The reversal of 121301401 is 104103121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104103121 = 17 ⋅6123713.

It can be written as a sum of positive squares in 2 ways, for example, as 13868176 + 107433225 = 3724^2 + 10365^2 .

It is a cyclic number.

It is not a de Polignac number, because 121301401 - 2¹³ = 121293209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 9330877 = 121301401 / (1 + 2 + 1 + 3 + 0 + 1 + 4 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121301801) 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, 4665426 + ... + 4665451.

It is an arithmetic number, because the mean of its divisors is an integer number (32658073).

Almost surely, 2^121301401 is an apocalyptic number.

It is an amenable number.

121301401 is a deficient number, since it is larger than the sum of its proper divisors (9330891).

121301401 is an equidigital number, since it uses as much as digits as its factorization.

121301401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9330890.

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

The square root of 121301401 is about 11013.6915246433. The cubic root of 121301401 is about 495.0190803107.

Adding to 121301401 its reverse (104103121), we get a palindrome (225404522).

It can be divided in two parts, 12130 and 1401, that added together give a palindrome (13531).

The spelling of 121301401 in words is "one hundred twenty-one million, three hundred one thousand, four hundred one".