4120121231 has 8 divisors (see below), whose sum is σ = 4228327584. Its totient is φ = 4013226720.

The previous prime is 4120121227. The next prime is 4120121287. The reversal of 4120121231 is 1321210214.

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 4120121231 - 2² = 4120121227 is a prime.

It is a super-2 number, since 2×4120121231² = 33950797916273910722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4120120231) 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, 321596 + ... + 334161.

It is an arithmetic number, because the mean of its divisors is an integer number (528540948).

Almost surely, 2^4120121231 is an apocalyptic number.

4120121231 is a deficient number, since it is larger than the sum of its proper divisors (108206353).

4120121231 is a wasteful number, since it uses less digits than its factorization.

4120121231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655921.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 4120121231 is about 64188.1704911427. The cubic root of 4120121231 is about 1603.1346400458.

Adding to 4120121231 its reverse (1321210214), we get a palindrome (5441331445).

The spelling of 4120121231 in words is "four billion, one hundred twenty million, one hundred twenty-one thousand, two hundred thirty-one".