20142123532 has 12 divisors (see below), whose sum is σ = 37322170200. Its totient is φ = 9478646336.

The previous prime is 20142123517. The next prime is 20142123541. The reversal of 20142123532 is 23532124102.

It is a junction number, because it is equal to n+sod(n) for n = 20142123497 and 20142123506.

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, 148103782 + ... + 148103917.

It is an arithmetic number, because the mean of its divisors is an integer number (3110180850).

Almost surely, 2^20142123532 is an apocalyptic number.

It is an amenable number.

20142123532 is a deficient number, since it is larger than the sum of its proper divisors (17180046668).

20142123532 is a wasteful number, since it uses less digits than its factorization.

20142123532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296207720 (or 296207718 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 20142123532 its reverse (23532124102), we get a palindrome (43674247634).

The spelling of 20142123532 in words is "twenty billion, one hundred forty-two million, one hundred twenty-three thousand, five hundred thirty-two".