1300042311 has 4 divisors (see below), whose sum is σ = 1733389752. Its totient is φ = 866694872.

The previous prime is 1300042307. The next prime is 1300042321. The reversal of 1300042311 is 1132400031.

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 1300042311 - 2² = 1300042307 is a prime.

It is a super-2 number, since 2×1300042311² = 3380220020780441442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300042321) 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, 216673716 + ... + 216673721.

It is an arithmetic number, because the mean of its divisors is an integer number (433347438).

Almost surely, 2^1300042311 is an apocalyptic number.

1300042311 is a deficient number, since it is larger than the sum of its proper divisors (433347441).

1300042311 is an equidigital number, since it uses as much as digits as its factorization.

1300042311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433347440.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1300042311 is about 36056.0994978658. The cubic root of 1300042311 is about 1091.4047234261.

Adding to 1300042311 its reverse (1132400031), we get a palindrome (2432442342).

The spelling of 1300042311 in words is "one billion, three hundred million, forty-two thousand, three hundred eleven".