123461247542 has 32 divisors (see below), whose sum is σ = 202895111520. Its totient is φ = 56082700800.

The previous prime is 123461247541. The next prime is 123461247551. The reversal of 123461247542 is 245742164321.

It is a self number, because there is not a number n which added to its sum of digits gives 123461247542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123461247541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5017313 + ... + 5041859.

It is an arithmetic number, because the mean of its divisors is an integer number (6340472235).

Almost surely, 2^123461247542 is an apocalyptic number.

123461247542 is a deficient number, since it is larger than the sum of its proper divisors (79433863978).

123461247542 is a wasteful number, since it uses less digits than its factorization.

123461247542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29696.

The product of its digits is 322560, while the sum is 41.

The spelling of 123461247542 in words is "one hundred twenty-three billion, four hundred sixty-one million, two hundred forty-seven thousand, five hundred forty-two".