4031420121 has 12 divisors (see below), whose sum is σ = 5832171072. Its totient is φ = 2683455576.

The previous prime is 4031420117. The next prime is 4031420131. The reversal of 4031420121 is 1210241304.

4031420121 is a `hidden beast` number, since 403 + 142 + 0 + 121 = 666.

4031420121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4031420121 - 2² = 4031420117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4031420094 and 4031420103.

It is not an unprimeable number, because it can be changed into a prime (4031420101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340341 + ... + 351986.

It is an arithmetic number, because the mean of its divisors is an integer number (486014256).

Almost surely, 2^4031420121 is an apocalyptic number.

It is an amenable number.

4031420121 is a deficient number, since it is larger than the sum of its proper divisors (1800750951).

4031420121 is a wasteful number, since it uses less digits than its factorization.

4031420121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692980 (or 692977 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4031420121 is about 63493.4651834344. The cubic root of 4031420121 is about 1591.5465775257.

Adding to 4031420121 its reverse (1210241304), we get a palindrome (5241661425).

The spelling of 4031420121 in words is "four billion, thirty-one million, four hundred twenty thousand, one hundred twenty-one".