1230131133 has 54 divisors (see below), whose sum is σ = 2272040862. Its totient is φ = 639001440.

The previous prime is 1230131129. The next prime is 1230131153. The reversal of 1230131133 is 3311310321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1153077849 + 77053284 = 33957^2 + 8778^2 .

It is not a de Polignac number, because 1230131133 - 2² = 1230131129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230131153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 41835 + ... + 64887.

Almost surely, 2^1230131133 is an apocalyptic number.

It is an amenable number.

1230131133 is a deficient number, since it is larger than the sum of its proper divisors (1041909729).

1230131133 is a wasteful number, since it uses less digits than its factorization.

1230131133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23095 (or 23074 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1230131133 is about 35073.2253007903. The cubic root of 1230131133 is about 1071.4793445730.

Adding to 1230131133 its reverse (3311310321), we get a palindrome (4541441454).

It can be divided in two parts, 12301 and 31133, that added together give a palindrome (43434).

The spelling of 1230131133 in words is "one billion, two hundred thirty million, one hundred thirty-one thousand, one hundred thirty-three".