20402102240124 has 48 divisors (see below), whose sum is σ = 53336208326016. Its totient is φ = 6015361838400.

The previous prime is 20402102240057. The next prime is 20402102240131. The reversal of 20402102240124 is 42104220120402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20402102240094 and 20402102240103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088662422 + ... + 2088672189.

It is an arithmetic number, because the mean of its divisors is an integer number (1111171006792).

Almost surely, 2^{20402102240124} is an apocalyptic number.

It is an amenable number.

20402102240124 is an abundant number, since it is smaller than the sum of its proper divisors (32934106085892).

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

20402102240124 is a wasteful number, since it uses less digits than its factorization.

20402102240124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177334666 (or 4177334664 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 20402102240124 its reverse (42104220120402), we get a palindrome (62506322360526).

The spelling of 20402102240124 in words is "twenty trillion, four hundred two billion, one hundred two million, two hundred forty thousand, one hundred twenty-four".