20131420124 has 12 divisors (see below), whose sum is σ = 35246912904. Its totient is φ = 10060873584.

The previous prime is 20131420081. The next prime is 20131420147. The reversal of 20131420124 is 42102413102.

It is a junction number, because it is equal to n+sod(n) for n = 20131420096 and 20131420105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199747 + ... + 1216410.

It is an arithmetic number, because the mean of its divisors is an integer number (2937242742).

Almost surely, 2^20131420124 is an apocalyptic number.

It is an amenable number.

20131420124 is a deficient number, since it is larger than the sum of its proper divisors (15115492780).

20131420124 is a wasteful number, since it uses less digits than its factorization.

20131420124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418244 (or 2418242 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20131420124 its reverse (42102413102), we get a palindrome (62233833226).

The spelling of 20131420124 in words is "twenty billion, one hundred thirty-one million, four hundred twenty thousand, one hundred twenty-four".