101230542 has 24 divisors (see below), whose sum is σ = 250666416. Its totient is φ = 28922976.

The previous prime is 101230523. The next prime is 101230579. The reversal of 101230542 is 245032101.

101230542 is a `hidden beast` number, since 1 + 0 + 123 + 0 + 542 = 666.

It is a super-2 number, since 2×101230542² = 20495245267227528, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 401583 + ... + 401834.

It is an arithmetic number, because the mean of its divisors is an integer number (10444434).

Almost surely, 2^101230542 is an apocalyptic number.

101230542 is an abundant number, since it is smaller than the sum of its proper divisors (149435874).

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

101230542 is a wasteful number, since it uses less digits than its factorization.

101230542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803432 (or 803429 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 101230542 is about 10061.3389764981. The cubic root of 101230542 is about 466.0550169284.

Adding to 101230542 its reverse (245032101), we get a palindrome (346262643).

The spelling of 101230542 in words is "one hundred one million, two hundred thirty thousand, five hundred forty-two".