1021314312505 has 8 divisors (see below), whose sum is σ = 1225582598592. Its totient is φ = 817047834288.

The previous prime is 1021314312497. The next prime is 1021314312509. The reversal of 1021314312505 is 5052134131201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021314312505 - 2³ = 1021314312497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021314312509) 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, 2016892 + ... + 2471938.

It is an arithmetic number, because the mean of its divisors is an integer number (153197824824).

Almost surely, 2^{1021314312505} is an apocalyptic number.

It is an amenable number.

1021314312505 is a deficient number, since it is larger than the sum of its proper divisors (204268286087).

1021314312505 is an equidigital number, since it uses as much as digits as its factorization.

1021314312505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903935.

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

Adding to 1021314312505 its reverse (5052134131201), we get a palindrome (6073448443706).

The spelling of 1021314312505 in words is "one trillion, twenty-one billion, three hundred fourteen million, three hundred twelve thousand, five hundred five".