1023431133 has 8 divisors (see below), whose sum is σ = 1383794496. Its totient is φ = 672677600.

The previous prime is 1023431131. The next prime is 1023431177. The reversal of 1023431133 is 3311343201.

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

It is a cyclic number.

It is not a de Polignac number, because 1023431133 - 2¹ = 1023431131 is a prime.

It is a super-2 number, since 2×1023431133² = 2094822567987327378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023431131) 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, 2402208 + ... + 2402633.

It is an arithmetic number, because the mean of its divisors is an integer number (172974312).

Almost surely, 2^1023431133 is an apocalyptic number.

It is an amenable number.

1023431133 is a deficient number, since it is larger than the sum of its proper divisors (360363363).

1023431133 is an equidigital number, since it uses as much as digits as its factorization.

1023431133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4804915.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1023431133 is about 31991.1102183091. The cubic root of 1023431133 is about 1007.7501575536.

Adding to 1023431133 its reverse (3311343201), we get a palindrome (4334774334).

The spelling of 1023431133 in words is "one billion, twenty-three million, four hundred thirty-one thousand, one hundred thirty-three".