2113623623542 has 4 divisors (see below), whose sum is σ = 3170435435316. Its totient is φ = 1056811811770.

The previous prime is 2113623623521. The next prime is 2113623623599. The reversal of 2113623623542 is 2453263263112.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2113623623495 and 2113623623504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528405905884 + ... + 528405905887.

It is an arithmetic number, because the mean of its divisors is an integer number (792608858829).

Almost surely, 2^{2113623623542} is an apocalyptic number.

2113623623542 is a deficient number, since it is larger than the sum of its proper divisors (1056811811774).

2113623623542 is a wasteful number, since it uses less digits than its factorization.

2113623623542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056811811773.

The product of its digits is 311040, while the sum is 40.

Adding to 2113623623542 its reverse (2453263263112), we get a palindrome (4566886886654).

The spelling of 2113623623542 in words is "two trillion, one hundred thirteen billion, six hundred twenty-three million, six hundred twenty-three thousand, five hundred forty-two".