1220315253311 has 16 divisors (see below), whose sum is σ = 1524608317440. Its totient is φ = 948909806880.

The previous prime is 1220315253263. The next prime is 1220315253323. The reversal of 1220315253311 is 1133525130221.

It is a de Polignac number, because none of the positive numbers 2^k-1220315253311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220315253211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16506176 + ... + 16579941.

It is an arithmetic number, because the mean of its divisors is an integer number (95288019840).

Almost surely, 2^{1220315253311} is an apocalyptic number.

1220315253311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1220315253311 is a deficient number, since it is larger than the sum of its proper divisors (304293064129).

1220315253311 is a wasteful number, since it uses less digits than its factorization.

1220315253311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33086614.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 1220315253311 in words is "one trillion, two hundred twenty billion, three hundred fifteen million, two hundred fifty-three thousand, three hundred eleven".