13123820746 has 16 divisors (see below), whose sum is σ = 21096814464. Its totient is φ = 6106971024.

The previous prime is 13123820741. The next prime is 13123820753. The reversal of 13123820746 is 64702832131.

It is a happy number.

It is a super-3 number, since 3×13123820746³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (13123820741) 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, 3853710 + ... + 3857113.

It is an arithmetic number, because the mean of its divisors is an integer number (1318550904).

Almost surely, 2^13123820746 is an apocalyptic number.

13123820746 is a deficient number, since it is larger than the sum of its proper divisors (7972993718).

13123820746 is a wasteful number, since it uses less digits than its factorization.

13123820746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710885.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 13123820746 in words is "thirteen billion, one hundred twenty-three million, eight hundred twenty thousand, seven hundred forty-six".