1342303991 has 12 divisors (see below), whose sum is σ = 1562987880. Its totient is φ = 1149417360.

The previous prime is 1342303987. The next prime is 1342303993. The reversal of 1342303991 is 1993032431.

It is not a de Polignac number, because 1342303991 - 2² = 1342303987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342303993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39080 + ... + 64898.

It is an arithmetic number, because the mean of its divisors is an integer number (130248990).

Almost surely, 2^1342303991 is an apocalyptic number.

1342303991 is a deficient number, since it is larger than the sum of its proper divisors (220683889).

1342303991 is a wasteful number, since it uses less digits than its factorization.

1342303991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26894 (or 26887 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 1342303991 is about 36637.4670385386. The cubic root of 1342303991 is about 1103.1052727506.

The spelling of 1342303991 in words is "one billion, three hundred forty-two million, three hundred three thousand, nine hundred ninety-one".