1025565611123 has 8 divisors (see below), whose sum is σ = 1032125523792. Its totient is φ = 1019006048736.

The previous prime is 1025565611033. The next prime is 1025565611129. The reversal of 1025565611123 is 3211165655201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025565611123 is a prime.

It is a super-2 number, since 2×1025565611123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025565611129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8415461 + ... + 8536457.

It is an arithmetic number, because the mean of its divisors is an integer number (129015690474).

Almost surely, 2^{1025565611123} is an apocalyptic number.

1025565611123 is a deficient number, since it is larger than the sum of its proper divisors (6559912669).

1025565611123 is a wasteful number, since it uses less digits than its factorization.

1025565611123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175141.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 1025565611123 in words is "one trillion, twenty-five billion, five hundred sixty-five million, six hundred eleven thousand, one hundred twenty-three".