1203111231122 has 4 divisors (see below), whose sum is σ = 1804666846686. Its totient is φ = 601555615560.

The previous prime is 1203111231107. The next prime is 1203111231163. The reversal of 1203111231122 is 2211321113021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 679686473761 + 523424757361 = 824431^2 + 723481^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1203111231094 and 1203111231103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300777807779 + ... + 300777807782.

Almost surely, 2^{1203111231122} is an apocalyptic number.

1203111231122 is a deficient number, since it is larger than the sum of its proper divisors (601555615564).

1203111231122 is an equidigital number, since it uses as much as digits as its factorization.

1203111231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601555615563.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1203111231122 its reverse (2211321113021), we get a palindrome (3414432344143).

The spelling of 1203111231122 in words is "one trillion, two hundred three billion, one hundred eleven million, two hundred thirty-one thousand, one hundred twenty-two".