1220231132113 has 16 divisors (see below), whose sum is σ = 1477826342784. Its totient is φ = 983558718720.

The previous prime is 1220231132077. The next prime is 1220231132117. The reversal of 1220231132113 is 3112311320221.

It is a cyclic number.

It is not a de Polignac number, because 1220231132113 - 2²¹ = 1220229034961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220231132117) 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, 4178058 + ... + 4460563.

It is an arithmetic number, because the mean of its divisors is an integer number (92364146424).

Almost surely, 2^{1220231132113} is an apocalyptic number.

It is an amenable number.

1220231132113 is a deficient number, since it is larger than the sum of its proper divisors (257595210671).

1220231132113 is a wasteful number, since it uses less digits than its factorization.

1220231132113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8639832.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1220231132113 its reverse (3112311320221), we get a palindrome (4332542452334).

The spelling of 1220231132113 in words is "one trillion, two hundred twenty billion, two hundred thirty-one million, one hundred thirty-two thousand, one hundred thirteen".