1023266135021 has 8 divisors (see below), whose sum is σ = 1102317926304. Its totient is φ = 944262774000.

The previous prime is 1023266134981. The next prime is 1023266135029. The reversal of 1023266135021 is 1205316623201.

It is a happy number.

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

It is not a de Polignac number, because 1023266135021 - 2³⁰ = 1022192393197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023266135029) 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, 12063671 + ... + 12148196.

It is an arithmetic number, because the mean of its divisors is an integer number (137789740788).

Almost surely, 2^{1023266135021} is an apocalyptic number.

It is an amenable number.

1023266135021 is a deficient number, since it is larger than the sum of its proper divisors (79051791283).

1023266135021 is a wasteful number, since it uses less digits than its factorization.

1023266135021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24215131.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 1023266135021 in words is "one trillion, twenty-three billion, two hundred sixty-six million, one hundred thirty-five thousand, twenty-one".