11142442525 has 6 divisors (see below), whose sum is σ = 13816628762. Its totient is φ = 8913954000.

The previous prime is 11142442511. The next prime is 11142442541. The reversal of 11142442525 is 52524424111.

It can be written as a sum of positive squares in 3 ways, for example, as 3746786521 + 7395656004 = 61211^2 + 85998^2 .

It is not a de Polignac number, because 11142442525 - 2⁷ = 11142442397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222848826 + ... + 222848875.

Almost surely, 2^11142442525 is an apocalyptic number.

It is an amenable number.

11142442525 is a deficient number, since it is larger than the sum of its proper divisors (2674186237).

11142442525 is an equidigital number, since it uses as much as digits as its factorization.

11142442525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445697711 (or 445697706 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

Adding to 11142442525 its reverse (52524424111), we get a palindrome (63666866636).

The spelling of 11142442525 in words is "eleven billion, one hundred forty-two million, four hundred forty-two thousand, five hundred twenty-five".