4513781123 has 2 divisors, whose sum is σ = 4513781124. Its totient is φ = 4513781122.

The previous prime is 4513781099. The next prime is 4513781137. The reversal of 4513781123 is 3211873154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4513781123 - 2¹² = 4513777027 is a prime.

It is a super-2 number, since 2×4513781123² = 40748440052702282258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4513781323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2256890561 + 2256890562.

It is an arithmetic number, because the mean of its divisors is an integer number (2256890562).

Almost surely, 2^4513781123 is an apocalyptic number.

4513781123 is a deficient number, since it is larger than the sum of its proper divisors (1).

4513781123 is an equidigital number, since it uses as much as digits as its factorization.

4513781123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 4513781123 is about 67184.6792282288. The cubic root of 4513781123 is about 1652.6472500985.

The spelling of 4513781123 in words is "four billion, five hundred thirteen million, seven hundred eighty-one thousand, one hundred twenty-three".