1405106536123 has 4 divisors (see below), whose sum is σ = 1405111061088. Its totient is φ = 1405102011160.

The previous prime is 1405106536103. The next prime is 1405106536199. The reversal of 1405106536123 is 3216356015041.

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 1405106536123 - 2⁵ = 1405106536091 is a prime.

It is a super-2 number, since 2×1405106536123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405106536103) 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, 1759411 + ... + 2430172.

It is an arithmetic number, because the mean of its divisors is an integer number (351277765272).

Almost surely, 2^{1405106536123} is an apocalyptic number.

1405106536123 is a deficient number, since it is larger than the sum of its proper divisors (4524965).

1405106536123 is an equidigital number, since it uses as much as digits as its factorization.

1405106536123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524964.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 1405106536123 in words is "one trillion, four hundred five billion, one hundred six million, five hundred thirty-six thousand, one hundred twenty-three".