1302123043 has 4 divisors (see below), whose sum is σ = 1402286368. Its totient is φ = 1201959720.

The previous prime is 1302122993. The next prime is 1302123049. The reversal of 1302123043 is 3403212031.

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

It is not a de Polignac number, because 1302123043 - 2¹³ = 1302114851 is a prime.

It is a super-2 number, since 2×1302123043² = 3391048838223159698, 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 1302123043.

It is not an unprimeable number, because it can be changed into a prime (1302123049) 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, 50081643 + ... + 50081668.

It is an arithmetic number, because the mean of its divisors is an integer number (350571592).

Almost surely, 2^1302123043 is an apocalyptic number.

1302123043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1302123043 is a deficient number, since it is larger than the sum of its proper divisors (100163325).

1302123043 is a wasteful number, since it uses less digits than its factorization.

1302123043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100163324.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1302123043 is about 36084.9420534383. The cubic root of 1302123043 is about 1091.9866814760.

Adding to 1302123043 its reverse (3403212031), we get a palindrome (4705335074).

The spelling of 1302123043 in words is "one billion, three hundred two million, one hundred twenty-three thousand, forty-three".