1202251123 has 4 divisors (see below), whose sum is σ = 1213923568. Its totient is φ = 1190578680.

The previous prime is 1202251097. The next prime is 1202251129. The reversal of 1202251123 is 3211522021.

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 1202251123 - 2⁵ = 1202251091 is a prime.

It is a super-2 number, since 2×1202251123² = 2890815525509522258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202251123.

It is not an unprimeable number, because it can be changed into a prime (1202251129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5836068 + ... + 5836273.

It is an arithmetic number, because the mean of its divisors is an integer number (303480892).

Almost surely, 2^1202251123 is an apocalyptic number.

1202251123 is a deficient number, since it is larger than the sum of its proper divisors (11672445).

1202251123 is a wasteful number, since it uses less digits than its factorization.

1202251123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11672444.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1202251123 is about 34673.4930891019. The cubic root of 1202251123 is about 1063.3226471958.

Adding to 1202251123 its reverse (3211522021), we get a palindrome (4413773144).

The spelling of 1202251123 in words is "one billion, two hundred two million, two hundred fifty-one thousand, one hundred twenty-three".