4020123299 has 4 divisors (see below), whose sum is σ = 4095974736. Its totient is φ = 3944271864.

The previous prime is 4020123251. The next prime is 4020123313. The reversal of 4020123299 is 9923210204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4020123299 - 2²⁸ = 3751687843 is a prime.

It is a super-2 number, since 2×4020123299² = 32322782678325286802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020123599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37925639 + ... + 37925744.

It is an arithmetic number, because the mean of its divisors is an integer number (1023993684).

Almost surely, 2^4020123299 is an apocalyptic number.

4020123299 is a deficient number, since it is larger than the sum of its proper divisors (75851437).

4020123299 is an equidigital number, since it uses as much as digits as its factorization.

4020123299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75851436.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 4020123299 is about 63404.4422655069. The cubic root of 4020123299 is about 1590.0585792534.

The spelling of 4020123299 in words is "four billion, twenty million, one hundred twenty-three thousand, two hundred ninety-nine".