100203070 has 32 divisors (see below), whose sum is σ = 197497440. Its totient is φ = 36301440.

The previous prime is 100203031. The next prime is 100203071. The reversal of 100203070 is 70302001.

It is a self number, because there is not a number n which added to its sum of digits gives 100203070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203071) 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, 30676 + ... + 33784.

It is an arithmetic number, because the mean of its divisors is an integer number (6171795).

Almost surely, 2^100203070 is an apocalyptic number.

100203070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100203070 is a deficient number, since it is larger than the sum of its proper divisors (97294370).

100203070 is a wasteful number, since it uses less digits than its factorization.

100203070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 100203070 is about 10010.1483505491. The cubic root of 100203070 is about 464.4728600744.

Adding to 100203070 its reverse (70302001), we get a palindrome (170505071).

The spelling of 100203070 in words is "one hundred million, two hundred three thousand, seventy".