123033647562551 has 4 divisors (see below), whose sum is σ = 134218524613704. Its totient is φ = 111848770511400.

The previous prime is 123033647562523. The next prime is 123033647562577. The reversal of 123033647562551 is 155265746330321.

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 123033647562551 - 2¹⁴ = 123033647546167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123033647562493 and 123033647562502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123033647562151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5592438525560 + ... + 5592438525581.

It is an arithmetic number, because the mean of its divisors is an integer number (33554631153426).

Almost surely, 2^{123033647562551} is an apocalyptic number.

123033647562551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123033647562551 is a deficient number, since it is larger than the sum of its proper divisors (11184877051153).

123033647562551 is a wasteful number, since it uses less digits than its factorization.

123033647562551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11184877051152.

The product of its (nonzero) digits is 13608000, while the sum is 53.

The spelling of 123033647562551 in words is "one hundred twenty-three trillion, thirty-three billion, six hundred forty-seven million, five hundred sixty-two thousand, five hundred fifty-one".