101203830 has 160 divisors (see below), whose sum is σ = 335168064. Its totient is φ = 21337344.

The previous prime is 101203813. The next prime is 101203859. The reversal of 101203830 is 38302101.

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 79 ways as a sum of consecutive naturals, for example, 73024 + ... + 74396.

Almost surely, 2^101203830 is an apocalyptic number.

101203830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101203830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167584032).

101203830 is an abundant number, since it is smaller than the sum of its proper divisors (233964234).

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

101203830 is a wasteful number, since it uses less digits than its factorization.

101203830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 101203830 is about 10060.0114314050. The cubic root of 101203830 is about 466.0140202208.

Adding to 101203830 its reverse (38302101), we get a palindrome (139505931).

The spelling of 101203830 in words is "one hundred one million, two hundred three thousand, eight hundred thirty".