1025135343243 has 24 divisors (see below), whose sum is σ = 1617145922496. Its totient is φ = 620609094000.

The previous prime is 1025135343223. The next prime is 1025135343247. The reversal of 1025135343243 is 3423435315201.

1025135343243 is a `hidden beast` number, since 1 + 0 + 2 + 51 + 3 + 534 + 32 + 43 = 666.

It is not a de Polignac number, because 1025135343243 - 2¹³ = 1025135335051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1025135343198 and 1025135343207.

It is not an unprimeable number, because it can be changed into a prime (1025135343247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5618533 + ... + 5798118.

It is an arithmetic number, because the mean of its divisors is an integer number (67381080104).

Almost surely, 2^{1025135343243} is an apocalyptic number.

1025135343243 is a deficient number, since it is larger than the sum of its proper divisors (592010579253).

1025135343243 is a wasteful number, since it uses less digits than its factorization.

1025135343243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11417575 (or 11417572 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 1025135343243 in words is "one trillion, twenty-five billion, one hundred thirty-five million, three hundred forty-three thousand, two hundred forty-three".