1425435521111 has 48 divisors (see below), whose sum is σ = 1691955095040. Its totient is φ = 1197158901120.

The previous prime is 1425435521101. The next prime is 1425435521119. The reversal of 1425435521111 is 1111255345241.

It is a happy number.

It is not a de Polignac number, because 1425435521111 - 2³⁴ = 1408255651927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425435521119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 591220496 + ... + 591222906.

It is an arithmetic number, because the mean of its divisors is an integer number (35249064480).

Almost surely, 2^{1425435521111} is an apocalyptic number.

1425435521111 is a deficient number, since it is larger than the sum of its proper divisors (266519573929).

1425435521111 is a wasteful number, since it uses less digits than its factorization.

1425435521111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604 (or 3597 counting only the distinct ones).

The product of its digits is 24000, while the sum is 35.

The spelling of 1425435521111 in words is "one trillion, four hundred twenty-five billion, four hundred thirty-five million, five hundred twenty-one thousand, one hundred eleven".