12401031142 has 4 divisors (see below), whose sum is σ = 18601546716. Its totient is φ = 6200515570.

The previous prime is 12401031133. The next prime is 12401031143. The reversal of 12401031142 is 24113010421.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401031143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3100257784 + ... + 3100257787.

It is an arithmetic number, because the mean of its divisors is an integer number (4650386679).

Almost surely, 2^12401031142 is an apocalyptic number.

12401031142 is a deficient number, since it is larger than the sum of its proper divisors (6200515574).

12401031142 is an equidigital number, since it uses as much as digits as its factorization.

12401031142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200515573.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12401031142 its reverse (24113010421), we get a palindrome (36514041563).

The spelling of 12401031142 in words is "twelve billion, four hundred one million, thirty-one thousand, one hundred forty-two".