1230011142 has 16 divisors (see below), whose sum is σ = 2463685680. Its totient is φ = 409393152.

The previous prime is 1230011099. The next prime is 1230011147. The reversal of 1230011142 is 2411100321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230011147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148267 + ... + 156342.

It is an arithmetic number, because the mean of its divisors is an integer number (153980355).

Almost surely, 2^1230011142 is an apocalyptic number.

1230011142 is an abundant number, since it is smaller than the sum of its proper divisors (1233674538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230011142 is a wasteful number, since it uses less digits than its factorization.

1230011142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305287.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1230011142 is about 35071.5146807206. The cubic root of 1230011142 is about 1071.4445049110. Note that the first 3 decimals are identical.

Adding to 1230011142 its reverse (2411100321), we get a palindrome (3641111463).

The spelling of 1230011142 in words is "one billion, two hundred thirty million, eleven thousand, one hundred forty-two".