4020121413 has 24 divisors (see below), whose sum is σ = 7239700416. Its totient is φ = 2088374400.

The previous prime is 4020121411. The next prime is 4020121423. The reversal of 4020121413 is 3141210204.

It is not a de Polignac number, because 4020121413 - 2¹ = 4020121411 is a prime.

It is a super-2 number, since 2×4020121413² = 32322752350522233138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020121411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2899828 + ... + 2901213.

It is an arithmetic number, because the mean of its divisors is an integer number (301654184).

Almost surely, 2^4020121413 is an apocalyptic number.

It is an amenable number.

4020121413 is a deficient number, since it is larger than the sum of its proper divisors (3219579003).

4020121413 is a wasteful number, since it uses less digits than its factorization.

4020121413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5801065 (or 5801062 counting only the distinct ones).

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

The square root of 4020121413 is about 63404.4273927302. The cubic root of 4020121413 is about 1590.0583306001.

Adding to 4020121413 its reverse (3141210204), we get a palindrome (7161331617).

The spelling of 4020121413 in words is "four billion, twenty million, one hundred twenty-one thousand, four hundred thirteen".