4013121407 has 2 divisors, whose sum is σ = 4013121408. Its totient is φ = 4013121406.

The previous prime is 4013121383. The next prime is 4013121419. The reversal of 4013121407 is 7041213104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4013121407 is a prime.

It is a super-2 number, since 2×4013121407² = 32210286854643319298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4013121457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006560703 + 2006560704.

It is an arithmetic number, because the mean of its divisors is an integer number (2006560704).

Almost surely, 2^4013121407 is an apocalyptic number.

4013121407 is a deficient number, since it is larger than the sum of its proper divisors (1).

4013121407 is an equidigital number, since it uses as much as digits as its factorization.

4013121407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 4013121407 is about 63349.2021023154. The cubic root of 4013121407 is about 1589.1349020748.

The spelling of 4013121407 in words is "four billion, thirteen million, one hundred twenty-one thousand, four hundred seven".