1020002311345 has 8 divisors (see below), whose sum is σ = 1224249727464. Its totient is φ = 815837213184.

The previous prime is 1020002311333. The next prime is 1020002311357. The reversal of 1020002311345 is 5431132000201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020002311333) and next prime (1020002311357).

It can be written as a sum of positive squares in 4 ways, for example, as 545459056704 + 474543254641 = 738552^2 + 688871^2 .

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 1020002311345 - 2⁷ = 1020002311217 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, 20552224 + ... + 20601793.

It is an arithmetic number, because the mean of its divisors is an integer number (153031215933).

Almost surely, 2^{1020002311345} is an apocalyptic number.

It is an amenable number.

1020002311345 is a deficient number, since it is larger than the sum of its proper divisors (204247416119).

1020002311345 is an equidigital number, since it uses as much as digits as its factorization.

1020002311345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41158979.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 1020002311345 its reverse (5431132000201), we get a palindrome (6451134311546).

The spelling of 1020002311345 in words is "one trillion, twenty billion, two million, three hundred eleven thousand, three hundred forty-five".