331101401 has 4 divisors (see below), whose sum is σ = 350577972. Its totient is φ = 311624832.

The previous prime is 331101389. The next prime is 331101437. The reversal of 331101401 is 104101133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104101133 = 19 ⋅5479007.

It can be written as a sum of positive squares in 2 ways, for example, as 90231001 + 240870400 = 9499^2 + 15520^2 .

It is a cyclic number.

It is not a de Polignac number, because 331101401 - 2¹⁴ = 331085017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331101481) 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, 9738260 + ... + 9738293.

It is an arithmetic number, because the mean of its divisors is an integer number (87644493).

Almost surely, 2^331101401 is an apocalyptic number.

It is an amenable number.

331101401 is a deficient number, since it is larger than the sum of its proper divisors (19476571).

331101401 is a wasteful number, since it uses less digits than its factorization.

331101401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19476570.

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

The square root of 331101401 is about 18196.1919367762. The cubic root of 331101401 is about 691.8102720032.

Adding to 331101401 its reverse (104101133), we get a palindrome (435202534).

The spelling of 331101401 in words is "three hundred thirty-one million, one hundred one thousand, four hundred one".