1023551133 has 8 divisors (see below), whose sum is σ = 1488801696. Its totient is φ = 620334000.

The previous prime is 1023551117. The next prime is 1023551141. The reversal of 1023551133 is 3311553201.

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

It is not a de Polignac number, because 1023551133 - 2⁴ = 1023551117 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023551153) 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, 15508318 + ... + 15508383.

It is an arithmetic number, because the mean of its divisors is an integer number (186100212).

Almost surely, 2^1023551133 is an apocalyptic number.

It is an amenable number.

1023551133 is a deficient number, since it is larger than the sum of its proper divisors (465250563).

1023551133 is a wasteful number, since it uses less digits than its factorization.

1023551133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31016715.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1023551133 is about 31992.9856843653. The cubic root of 1023551133 is about 1007.7895431357.

The spelling of 1023551133 in words is "one billion, twenty-three million, five hundred fifty-one thousand, one hundred thirty-three".