10785280103531 has 4 divisors (see below), whose sum is σ = 10798321555512. Its totient is φ = 10772238651552.

The previous prime is 10785280103513. The next prime is 10785280103567. The reversal of 10785280103531 is 13530108258701.

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

It is a cyclic number.

It is not a de Polignac number, because 10785280103531 - 2⁶ = 10785280103467 is a prime.

It is a super-2 number, since 2×10785280103531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10785280103831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6520724750 + ... + 6520726403.

It is an arithmetic number, because the mean of its divisors is an integer number (2699580388878).

Almost surely, 2^{10785280103531} is an apocalyptic number.

10785280103531 is a deficient number, since it is larger than the sum of its proper divisors (13041451981).

10785280103531 is an equidigital number, since it uses as much as digits as its factorization.

10785280103531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13041451980.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 10785280103531 in words is "ten trillion, seven hundred eighty-five billion, two hundred eighty million, one hundred three thousand, five hundred thirty-one".