1023240345515 has 8 divisors (see below), whose sum is σ = 1256443959408. Its totient is φ = 799555246560.

The previous prime is 1023240345509. The next prime is 1023240345529. The reversal of 1023240345515 is 5155430423201.

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

It is not a de Polignac number, because 1023240345515 - 2³⁶ = 954520868779 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2379628496 + ... + 2379628925.

It is an arithmetic number, because the mean of its divisors is an integer number (157055494926).

Almost surely, 2^{1023240345515} is an apocalyptic number.

1023240345515 is a deficient number, since it is larger than the sum of its proper divisors (233203613893).

1023240345515 is an equidigital number, since it uses as much as digits as its factorization.

1023240345515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759257469.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 1023240345515 its reverse (5155430423201), we get a palindrome (6178670768716).

The spelling of 1023240345515 in words is "one trillion, twenty-three billion, two hundred forty million, three hundred forty-five thousand, five hundred fifteen".