1311124001 has 8 divisors (see below), whose sum is σ = 1435374624. Its totient is φ = 1187716320.

The previous prime is 1311123973. The next prime is 1311124007. The reversal of 1311124001 is 1004211131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311124001 is a prime.

It is a super-2 number, since 2×1311124001² = 3438092291996496002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311124007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207476 + ... + 213701.

It is an arithmetic number, because the mean of its divisors is an integer number (179421828).

Almost surely, 2^1311124001 is an apocalyptic number.

1311124001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1311124001 is a deficient number, since it is larger than the sum of its proper divisors (124250623).

1311124001 is a wasteful number, since it uses less digits than its factorization.

1311124001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421471.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1311124001 is about 36209.4462951313. The cubic root of 1311124001 is about 1094.4970344256.

Adding to 1311124001 its reverse (1004211131), we get a palindrome (2315335132).

The spelling of 1311124001 in words is "one billion, three hundred eleven million, one hundred twenty-four thousand, one".