1203222131 has 2 divisors, whose sum is σ = 1203222132. Its totient is φ = 1203222130.

The previous prime is 1203222103. The next prime is 1203222149. The reversal of 1203222131 is 1312223021.

It is a strong prime.

It is an emirp because it is prime and its reverse (1312223021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1203222131 - 2⁶ = 1203222067 is a prime.

It is a super-2 number, since 2×1203222131² = 2895486993056362322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1203222331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601611065 + 601611066.

It is an arithmetic number, because the mean of its divisors is an integer number (601611066).

Almost surely, 2^1203222131 is an apocalyptic number.

1203222131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203222131 is an equidigital number, since it uses as much as digits as its factorization.

1203222131 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 17.

The square root of 1203222131 is about 34687.4924288280. The cubic root of 1203222131 is about 1063.6088372533.

Adding to 1203222131 its reverse (1312223021), we get a palindrome (2515445152).

The spelling of 1203222131 in words is "one billion, two hundred three million, two hundred twenty-two thousand, one hundred thirty-one".