1201123051 has 2 divisors, whose sum is σ = 1201123052. Its totient is φ = 1201123050.

The previous prime is 1201122983. The next prime is 1201123061. The reversal of 1201123051 is 1503211021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201123051 - 2¹¹ = 1201121003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201123061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600561525 + 600561526.

It is an arithmetic number, because the mean of its divisors is an integer number (600561526).

Almost surely, 2^1201123051 is an apocalyptic number.

1201123051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201123051 is an equidigital number, since it uses as much as digits as its factorization.

1201123051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1201123051 is about 34657.2222054798. Note that the first 4 decimals coincide. The cubic root of 1201123051 is about 1062.9899713117.

Adding to 1201123051 its reverse (1503211021), we get a palindrome (2704334072).

The spelling of 1201123051 in words is "one billion, two hundred one million, one hundred twenty-three thousand, fifty-one".