123424111051554 has 32 divisors (see below), whose sum is σ = 261414649805760. Its totient is φ = 38714483215872.

The previous prime is 123424111051547. The next prime is 123424111051583. The reversal of 123424111051554 is 455150111424321.

It is a super-2 number, since 2×123424111051554² (a number of 29 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 105768844 + ... + 106929399.

It is an arithmetic number, because the mean of its divisors is an integer number (8169207806430).

Almost surely, 2^{123424111051554} is an apocalyptic number.

123424111051554 is an abundant number, since it is smaller than the sum of its proper divisors (137990538754206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123424111051554 is a wasteful number, since it uses less digits than its factorization.

123424111051554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212703954.

The product of its (nonzero) digits is 96000, while the sum is 39.

Adding to 123424111051554 its reverse (455150111424321), we get a palindrome (578574222475875).

The spelling of 123424111051554 in words is "one hundred twenty-three trillion, four hundred twenty-four billion, one hundred eleven million, fifty-one thousand, five hundred fifty-four".