1202312123 has 8 divisors (see below), whose sum is σ = 1235721792. Its totient is φ = 1169228736.

The previous prime is 1202312107. The next prime is 1202312149. The reversal of 1202312123 is 3212132021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1202312123 - 2⁴ = 1202312107 is a prime.

It is a super-2 number, since 2×1202312123² = 2891108882225534258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202312323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74090 + ... + 88847.

It is an arithmetic number, because the mean of its divisors is an integer number (154465224).

Almost surely, 2^1202312123 is an apocalyptic number.

1202312123 is a deficient number, since it is larger than the sum of its proper divisors (33409669).

1202312123 is a wasteful number, since it uses less digits than its factorization.

1202312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163141.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1202312123 is about 34674.3727124226. The cubic root of 1202312123 is about 1063.3406305670.

Adding to 1202312123 its reverse (3212132021), we get a palindrome (4414444144).

The spelling of 1202312123 in words is "one billion, two hundred two million, three hundred twelve thousand, one hundred twenty-three".