1031401113505 has 8 divisors (see below), whose sum is σ = 1414492955712. Its totient is φ = 707246477808.

The previous prime is 1031401113503. The next prime is 1031401113511. The reversal of 1031401113505 is 5053111041301.

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

It is a cyclic number.

It is not a de Polignac number, because 1031401113505 - 2¹ = 1031401113503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031401113505.

It is not an unprimeable number, because it can be changed into a prime (1031401113503) 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, 14734301587 + ... + 14734301656.

It is an arithmetic number, because the mean of its divisors is an integer number (176811619464).

Almost surely, 2^{1031401113505} is an apocalyptic number.

It is an amenable number.

1031401113505 is a deficient number, since it is larger than the sum of its proper divisors (383091842207).

1031401113505 is an equidigital number, since it uses as much as digits as its factorization.

1031401113505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29468603255.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 1031401113505 its reverse (5053111041301), we get a palindrome (6084512154806).

The spelling of 1031401113505 in words is "one trillion, thirty-one billion, four hundred one million, one hundred thirteen thousand, five hundred five".