1240323215402 has 8 divisors (see below), whose sum is σ = 1886688834912. Its totient is φ = 611426937100.

The previous prime is 1240323215371. The next prime is 1240323215413. The reversal of 1240323215402 is 2045123230421.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4367335124 + ... + 4367335407.

It is an arithmetic number, because the mean of its divisors is an integer number (235836104364).

Almost surely, 2^{1240323215402} is an apocalyptic number.

1240323215402 is a deficient number, since it is larger than the sum of its proper divisors (646365619510).

1240323215402 is an equidigital number, since it uses as much as digits as its factorization.

1240323215402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8734670604.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 1240323215402 its reverse (2045123230421), we get a palindrome (3285446445823).

The spelling of 1240323215402 in words is "one trillion, two hundred forty billion, three hundred twenty-three million, two hundred fifteen thousand, four hundred two".