10012120030 has 16 divisors (see below), whose sum is σ = 19660163184. Its totient is φ = 3640770880.

The previous prime is 10012120021. The next prime is 10012120037. The reversal of 10012120030 is 3002121001.

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 = 10012119989 and 10012120016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012120037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45509527 + ... + 45509746.

It is an arithmetic number, because the mean of its divisors is an integer number (1228760199).

Almost surely, 2^10012120030 is an apocalyptic number.

10012120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10012120030 is a deficient number, since it is larger than the sum of its proper divisors (9648043154).

10012120030 is a wasteful number, since it uses less digits than its factorization.

10012120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91019291.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10012120030 its reverse (3002121001), we get a palindrome (13014241031).

The spelling of 10012120030 in words is "ten billion, twelve million, one hundred twenty thousand, thirty".