1220131121203 has 2 divisors, whose sum is σ = 1220131121204. Its totient is φ = 1220131121202.

The previous prime is 1220131121197. The next prime is 1220131121207. The reversal of 1220131121203 is 3021211310221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220131121203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220131121207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610065560601 + 610065560602.

It is an arithmetic number, because the mean of its divisors is an integer number (610065560602).

Almost surely, 2^{1220131121203} is an apocalyptic number.

1220131121203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220131121203 is an equidigital number, since it uses as much as digits as its factorization.

1220131121203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1220131121203 its reverse (3021211310221), we get a palindrome (4241342431424).

The spelling of 1220131121203 in words is "one trillion, two hundred twenty billion, one hundred thirty-one million, one hundred twenty-one thousand, two hundred three".