1202123443 has 4 divisors (see below), whose sum is σ = 1202222088. Its totient is φ = 1202024800.

The previous prime is 1202123441. The next prime is 1202123449. The reversal of 1202123443 is 3443212021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1202123443 - 2¹ = 1202123441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202123441) 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, 27958 + ... + 56443.

It is an arithmetic number, because the mean of its divisors is an integer number (300555522).

Almost surely, 2^1202123443 is an apocalyptic number.

1202123443 is a deficient number, since it is larger than the sum of its proper divisors (98645).

1202123443 is an equidigital number, since it uses as much as digits as its factorization.

1202123443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98644.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1202123443 is about 34671.6518643113. The cubic root of 1202123443 is about 1063.2850039671.

Adding to 1202123443 its reverse (3443212021), we get a palindrome (4645335464).

The spelling of 1202123443 in words is "one billion, two hundred two million, one hundred twenty-three thousand, four hundred forty-three".