1023271429189 has 4 divisors (see below), whose sum is σ = 1033402829580. Its totient is φ = 1013140028800.

The previous prime is 1023271429139. The next prime is 1023271429207. The reversal of 1023271429189 is 9819241723201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 445089122500 + 578182306689 = 667150^2 + 760383^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023271429189 - 2¹¹ = 1023271427141 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 (1023271429139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5065700044 + ... + 5065700245.

It is an arithmetic number, because the mean of its divisors is an integer number (258350707395).

Almost surely, 2^{1023271429189} is an apocalyptic number.

It is an amenable number.

1023271429189 is a deficient number, since it is larger than the sum of its proper divisors (10131400391).

1023271429189 is a wasteful number, since it uses less digits than its factorization.

1023271429189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10131400390.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 1023271429189 in words is "one trillion, twenty-three billion, two hundred seventy-one million, four hundred twenty-nine thousand, one hundred eighty-nine".