1020135525423 has 8 divisors (see below), whose sum is σ = 1554492229248. Its totient is φ = 582934585944.

The previous prime is 1020135525419. The next prime is 1020135525433. The reversal of 1020135525423 is 3245255310201.

1020135525423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1020135525423 - 2² = 1020135525419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020135525433) 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, 24288941061 + ... + 24288941102.

It is an arithmetic number, because the mean of its divisors is an integer number (194311528656).

Almost surely, 2^{1020135525423} is an apocalyptic number.

1020135525423 is a deficient number, since it is larger than the sum of its proper divisors (534356703825).

1020135525423 is an equidigital number, since it uses as much as digits as its factorization.

1020135525423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48577882173.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 1020135525423 in words is "one trillion, twenty billion, one hundred thirty-five million, five hundred twenty-five thousand, four hundred twenty-three".