1311000542 has 8 divisors (see below), whose sum is σ = 1966807632. Its totient is φ = 655398000.

The previous prime is 1311000533. The next prime is 1311000599. The reversal of 1311000542 is 2450001131.

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

It is a super-2 number, since 2×1311000542² = 3437444842248587528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311000542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33959 + ... + 61442.

It is an arithmetic number, because the mean of its divisors is an integer number (245850954).

Almost surely, 2^1311000542 is an apocalyptic number.

1311000542 is a deficient number, since it is larger than the sum of its proper divisors (655807090).

1311000542 is an equidigital number, since it uses as much as digits as its factorization.

1311000542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102274.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1311000542 is about 36207.7414650514. The cubic root of 1311000542 is about 1094.4626797419.

Adding to 1311000542 its reverse (2450001131), we get a palindrome (3761001673).

The spelling of 1311000542 in words is "one billion, three hundred eleven million, five hundred forty-two", and thus it is an aban number.