1121020122123 has 12 divisors (see below), whose sum is σ = 1766455950168. Its totient is φ = 679406134560.

The previous prime is 1121020122119. The next prime is 1121020122133. The reversal of 1121020122123 is 3212210201211.

1121020122123 is a `hidden beast` number, since 11 + 210 + 201 + 221 + 23 = 666.

It is not a de Polignac number, because 1121020122123 - 2² = 1121020122119 is a prime.

It is a super-2 number, since 2×1121020122123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121020122096 and 1121020122105.

It is not an unprimeable number, because it can be changed into a prime (1121020122133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5661717690 + ... + 5661717887.

It is an arithmetic number, because the mean of its divisors is an integer number (147204662514).

Almost surely, 2^{1121020122123} is an apocalyptic number.

1121020122123 is a deficient number, since it is larger than the sum of its proper divisors (645435828045).

1121020122123 is a wasteful number, since it uses less digits than its factorization.

1121020122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11323435594 (or 11323435591 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1121020122123 its reverse (3212210201211), we get a palindrome (4333230323334).

The spelling of 1121020122123 in words is "one trillion, one hundred twenty-one billion, twenty million, one hundred twenty-two thousand, one hundred twenty-three".