101421432 has 48 divisors (see below), whose sum is σ = 313925040. Its totient is φ = 28977408.

The previous prime is 101421427. The next prime is 101421443. The reversal of 101421432 is 234124101.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100113 + ... + 101120.

It is an arithmetic number, because the mean of its divisors is an integer number (6540105).

Almost surely, 2^101421432 is an apocalyptic number.

101421432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101421432 is an abundant number, since it is smaller than the sum of its proper divisors (212503608).

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

101421432 is a wasteful number, since it uses less digits than its factorization.

101421432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201252 (or 201245 counting only the distinct ones).

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

The square root of 101421432 is about 10070.8208205687. The cubic root of 101421432 is about 466.3477789693.

Adding to 101421432 its reverse (234124101), we get a palindrome (335545533).

The spelling of 101421432 in words is "one hundred one million, four hundred twenty-one thousand, four hundred thirty-two".