1200122023 has 16 divisors (see below), whose sum is σ = 1285885440. Its totient is φ = 1116720000.

The previous prime is 1200121963. The next prime is 1200122039. The reversal of 1200122023 is 3202210021.

It is a cyclic number.

It is not a de Polignac number, because 1200122023 - 2²¹ = 1198024871 is a prime.

It is a super-2 number, since 2×1200122023² = 2880585740179225058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200121994 and 1200122012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200122093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509298 + ... + 511648.

It is an arithmetic number, because the mean of its divisors is an integer number (80367840).

Almost surely, 2^1200122023 is an apocalyptic number.

1200122023 is a deficient number, since it is larger than the sum of its proper divisors (85763417).

1200122023 is a wasteful number, since it uses less digits than its factorization.

1200122023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1200122023 is about 34642.7773569037. Note that the first 3 decimals coincide. The cubic root of 1200122023 is about 1062.6945870692.

Adding to 1200122023 its reverse (3202210021), we get a palindrome (4402332044).

The spelling of 1200122023 in words is "one billion, two hundred million, one hundred twenty-two thousand, twenty-three".