123054421542 has 16 divisors (see below), whose sum is σ = 265040292720. Its totient is φ = 37862898912.

The previous prime is 123054421541. The next prime is 123054421559. The reversal of 123054421542 is 245124450321.

It is a super-2 number, since 2×123054421542² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123054421541) 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, 788810317 + ... + 788810472.

It is an arithmetic number, because the mean of its divisors is an integer number (16565018295).

Almost surely, 2^123054421542 is an apocalyptic number.

123054421542 is an abundant number, since it is smaller than the sum of its proper divisors (141985871178).

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

123054421542 is a wasteful number, since it uses less digits than its factorization.

123054421542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577620807.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 123054421542 its reverse (245124450321), we get a palindrome (368178871863).

The spelling of 123054421542 in words is "one hundred twenty-three billion, fifty-four million, four hundred twenty-one thousand, five hundred forty-two".