1240213323 has 8 divisors (see below), whose sum is σ = 1698310288. Its totient is φ = 804462624.

The previous prime is 1240213321. The next prime is 1240213357. The reversal of 1240213323 is 3233120421.

1240213323 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1240213323 - 2¹ = 1240213321 is a prime.

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 1240213323.

It is not an unprimeable number, because it can be changed into a prime (1240213321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5586436 + ... + 5586657.

It is an arithmetic number, because the mean of its divisors is an integer number (212288786).

Almost surely, 2^1240213323 is an apocalyptic number.

1240213323 is a deficient number, since it is larger than the sum of its proper divisors (458096965).

1240213323 is a wasteful number, since it uses less digits than its factorization.

1240213323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11173133.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1240213323 is about 35216.6625761159. The cubic root of 1240213323 is about 1074.3986752002.

Adding to 1240213323 its reverse (3233120421), we get a palindrome (4473333744).

The spelling of 1240213323 in words is "one billion, two hundred forty million, two hundred thirteen thousand, three hundred twenty-three".