12342503991 has 16 divisors (see below), whose sum is σ = 16783613280. Its totient is φ = 8065787520.

The previous prime is 12342503951. The next prime is 12342504019. The reversal of 12342503991 is 19930524321.

It is not a de Polignac number, because 12342503991 - 2¹¹ = 12342501943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342503951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61476 + ... + 168713.

It is an arithmetic number, because the mean of its divisors is an integer number (1048975830).

Almost surely, 2^12342503991 is an apocalyptic number.

12342503991 is a deficient number, since it is larger than the sum of its proper divisors (4441109289).

12342503991 is a wasteful number, since it uses less digits than its factorization.

12342503991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230546.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 12342503991 in words is "twelve billion, three hundred forty-two million, five hundred three thousand, nine hundred ninety-one".