1220303101311 has 24 divisors (see below), whose sum is σ = 2014769930784. Its totient is φ = 697211755200.

The previous prime is 1220303101231. The next prime is 1220303101321. The reversal of 1220303101311 is 1131013030221.

1220303101311 is a `hidden beast` number, since 1 + 220 + 3 + 0 + 310 + 131 + 1 = 666.

It is not a de Polignac number, because 1220303101311 - 2¹⁴ = 1220303084927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220303101321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1023136 + ... + 1867461.

It is an arithmetic number, because the mean of its divisors is an integer number (83948747116).

Almost surely, 2^{1220303101311} is an apocalyptic number.

1220303101311 is a deficient number, since it is larger than the sum of its proper divisors (794466829473).

1220303101311 is a wasteful number, since it uses less digits than its factorization.

1220303101311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897311 (or 2897308 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1220303101311 its reverse (1131013030221), we get a palindrome (2351316131532).

The spelling of 1220303101311 in words is "one trillion, two hundred twenty billion, three hundred three million, one hundred one thousand, three hundred eleven".