1311004142 has 32 divisors (see below), whose sum is σ = 2401063680. Its totient is φ = 524335680.

The previous prime is 1311004141. The next prime is 1311004169. The reversal of 1311004142 is 2414001131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311004142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311004141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18959 + ... + 54602.

It is an arithmetic number, because the mean of its divisors is an integer number (75033240).

Almost surely, 2^1311004142 is an apocalyptic number.

1311004142 is a deficient number, since it is larger than the sum of its proper divisors (1090059538).

1311004142 is a wasteful number, since it uses less digits than its factorization.

1311004142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73656.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1311004142 is about 36207.7911781429. The cubic root of 1311004142 is about 1094.4636815371.

Adding to 1311004142 its reverse (2414001131), we get a palindrome (3725005273).

The spelling of 1311004142 in words is "one billion, three hundred eleven million, four thousand, one hundred forty-two".