1425051021111 has 16 divisors (see below), whose sum is σ = 1918317878400. Its totient is φ = 940916526048.

The previous prime is 1425051021013. The next prime is 1425051021161. The reversal of 1425051021111 is 1111201505241.

It is not a de Polignac number, because 1425051021111 - 2¹⁰ = 1425051020087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425051021161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160941 + ... + 1695878.

It is an arithmetic number, because the mean of its divisors is an integer number (119894867400).

Almost surely, 2^{1425051021111} is an apocalyptic number.

1425051021111 is a deficient number, since it is larger than the sum of its proper divisors (493266857289).

1425051021111 is a wasteful number, since it uses less digits than its factorization.

1425051021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859278.

The product of its (nonzero) digits is 400, while the sum is 24.

Adding to 1425051021111 its reverse (1111201505241), we get a palindrome (2536252526352).

The spelling of 1425051021111 in words is "one trillion, four hundred twenty-five billion, fifty-one million, twenty-one thousand, one hundred eleven".