13123402445 has 32 divisors (see below), whose sum is σ = 16727572224. Its totient is φ = 9862617600.

The previous prime is 13123402427. The next prime is 13123402469. The reversal of 13123402445 is 54420432131.

It is not a de Polignac number, because 13123402445 - 2¹² = 13123398349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7245590 + ... + 7247400.

It is an arithmetic number, because the mean of its divisors is an integer number (522736632).

Almost surely, 2^13123402445 is an apocalyptic number.

It is an amenable number.

13123402445 is a deficient number, since it is larger than the sum of its proper divisors (3604169779).

13123402445 is a wasteful number, since it uses less digits than its factorization.

13123402445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 13123402445 its reverse (54420432131), we get a palindrome (67543834576).

The spelling of 13123402445 in words is "thirteen billion, one hundred twenty-three million, four hundred two thousand, four hundred forty-five".