1121210200031 has 2 divisors, whose sum is σ = 1121210200032. Its totient is φ = 1121210200030.

The previous prime is 1121210199997. The next prime is 1121210200049. The reversal of 1121210200031 is 1300020121211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121210200031 - 2²² = 1121206005727 is a prime.

It is a super-2 number, since 2×1121210200031² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121210199979 and 1121210200015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121210200091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560605100015 + 560605100016.

It is an arithmetic number, because the mean of its divisors is an integer number (560605100016).

Almost surely, 2^{1121210200031} is an apocalyptic number.

1121210200031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121210200031 is an equidigital number, since it uses as much as digits as its factorization.

1121210200031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1121210200031 its reverse (1300020121211), we get a palindrome (2421230321242).

The spelling of 1121210200031 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, two hundred thousand, thirty-one".