13123255040542 has 16 divisors (see below), whose sum is σ = 19742433108480. Its totient is φ = 6542454689152.

The previous prime is 13123255040527. The next prime is 13123255040551. The reversal of 13123255040542 is 24504055232131.

It is a happy number.

It is a super-2 number, since 2×13123255040542² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211303 + ... + 5127490.

It is an arithmetic number, because the mean of its divisors is an integer number (1233902069280).

Almost surely, 2^{13123255040542} is an apocalyptic number.

13123255040542 is a deficient number, since it is larger than the sum of its proper divisors (6619178067938).

13123255040542 is a wasteful number, since it uses less digits than its factorization.

13123255040542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342387.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 13123255040542 in words is "thirteen trillion, one hundred twenty-three billion, two hundred fifty-five million, forty thousand, five hundred forty-two".