100312030 has 32 divisors (see below), whose sum is σ = 222231744. Its totient is φ = 31746816.

The previous prime is 100312007. The next prime is 100312033. The reversal of 100312030 is 30213001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 100311998 and 100312016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100312033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54207 + ... + 56026.

It is an arithmetic number, because the mean of its divisors is an integer number (6944742).

Almost surely, 2^100312030 is an apocalyptic number.

100312030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100312030 is an abundant number, since it is smaller than the sum of its proper divisors (121919714).

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

100312030 is a wasteful number, since it uses less digits than its factorization.

100312030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110260.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 100312030 is about 10015.5893486105. The cubic root of 100312030 is about 464.6411537537.

Adding to 100312030 its reverse (30213001), we get a palindrome (130525031).

The spelling of 100312030 in words is "one hundred million, three hundred twelve thousand, thirty".