1323040051 has 4 divisors (see below), whose sum is σ = 1324161504. Its totient is φ = 1321918600.

The previous prime is 1323040031. The next prime is 1323040067. The reversal of 1323040051 is 1500403231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1500403231 = 47 ⋅31923473.

It is a cyclic number.

It is not a de Polignac number, because 1323040051 - 2⁷ = 1323039923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323040021) 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, 558955 + ... + 561316.

It is an arithmetic number, because the mean of its divisors is an integer number (331040376).

Almost surely, 2^1323040051 is an apocalyptic number.

1323040051 is a deficient number, since it is larger than the sum of its proper divisors (1121453).

1323040051 is a wasteful number, since it uses less digits than its factorization.

1323040051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121452.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1323040051 is about 36373.6175132472. The cubic root of 1323040051 is about 1097.8027906618.

Adding to 1323040051 its reverse (1500403231), we get a palindrome (2823443282).

The spelling of 1323040051 in words is "one billion, three hundred twenty-three million, forty thousand, fifty-one".