1021240513315 has 32 divisors (see below), whose sum is σ = 1385153187840. Its totient is φ = 716089353600.

The previous prime is 1021240513283. The next prime is 1021240513333. The reversal of 1021240513315 is 5133150421201.

It is not a de Polignac number, because 1021240513315 - 2⁵ = 1021240513283 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 654679 + ... + 1571968.

It is an arithmetic number, because the mean of its divisors is an integer number (43286037120).

Almost surely, 2^{1021240513315} is an apocalyptic number.

1021240513315 is a deficient number, since it is larger than the sum of its proper divisors (363912674525).

1021240513315 is a wasteful number, since it uses less digits than its factorization.

1021240513315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226963.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 1021240513315 its reverse (5133150421201), we get a palindrome (6154390934516).

The spelling of 1021240513315 in words is "one trillion, twenty-one billion, two hundred forty million, five hundred thirteen thousand, three hundred fifteen".