101232120042 has 48 divisors (see below), whose sum is σ = 230955117120. Its totient is φ = 31957675200.

The previous prime is 101232120037. The next prime is 101232120043. The reversal of 101232120042 is 240021232101.

It is a happy number.

101232120042 is a `hidden beast` number, since 101 + 2 + 321 + 200 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

101232120042 is a modest number, since divided by 120042 gives 101232 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 101232119997 and 101232120024.

It is not an unprimeable number, because it can be changed into a prime (101232120043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1044942 + ... + 1137702.

It is an arithmetic number, because the mean of its divisors is an integer number (4811564940).

Almost surely, 2^101232120042 is an apocalyptic number.

101232120042 is an abundant number, since it is smaller than the sum of its proper divisors (129722997078).

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

101232120042 is a wasteful number, since it uses less digits than its factorization.

101232120042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95979 (or 95976 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 101232120042 its reverse (240021232101), we get a palindrome (341253352143).

The spelling of 101232120042 in words is "one hundred one billion, two hundred thirty-two million, one hundred twenty thousand, forty-two".