601230121 has 4 divisors (see below), whose sum is σ = 602842372. Its totient is φ = 599617872.

The previous prime is 601230079. The next prime is 601230139. The reversal of 601230121 is 121032106.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 249292521 + 351937600 = 15789^2 + 18760^2 .

It is a cyclic number.

It is not a de Polignac number, because 601230121 - 2²¹ = 599132969 is a prime.

It is a super-2 number, since 2×601230121² = 722955316795349282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 601230095 and 601230104.

It is not an unprimeable number, because it can be changed into a prime (601230181) 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, 805566 + ... + 806311.

It is an arithmetic number, because the mean of its divisors is an integer number (150710593).

Almost surely, 2^601230121 is an apocalyptic number.

It is an amenable number.

601230121 is a deficient number, since it is larger than the sum of its proper divisors (1612251).

601230121 is a wasteful number, since it uses less digits than its factorization.

601230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612250.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 601230121 is about 24519.9943107661. The cubic root of 601230121 is about 844.0086741882.

Adding to 601230121 its reverse (121032106), we get a palindrome (722262227).

The spelling of 601230121 in words is "six hundred one million, two hundred thirty thousand, one hundred twenty-one".