103012111212 has 48 divisors (see below), whose sum is σ = 252473206272. Its totient is φ = 32626915200.

The previous prime is 103012111207. The next prime is 103012111231. The reversal of 103012111212 is 212111210301.

It is a super-2 number, since 2×103012111212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103012111191 and 103012111200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194193 + ... + 1277544.

It is an arithmetic number, because the mean of its divisors is an integer number (5259858464).

Almost surely, 2^103012111212 is an apocalyptic number.

103012111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103012111212 is an abundant number, since it is smaller than the sum of its proper divisors (149461095060).

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

103012111212 is a wasteful number, since it uses less digits than its factorization.

103012111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471918 (or 2471916 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 103012111212 its reverse (212111210301), we get a palindrome (315123321513).

The spelling of 103012111212 in words is "one hundred three billion, twelve million, one hundred eleven thousand, two hundred twelve".