121030203012 has 24 divisors (see below), whose sum is σ = 288971338656. Its totient is φ = 39405182208.

The previous prime is 121030203001. The next prime is 121030203017. The reversal of 121030203012 is 210302030121.

It is a super-2 number, since 2×121030203012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121030202982 and 121030203000.

It is not an unprimeable number, because it can be changed into a prime (121030203017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117276813 + ... + 117277844.

It is an arithmetic number, because the mean of its divisors is an integer number (12040472444).

Almost surely, 2^121030203012 is an apocalyptic number.

121030203012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121030203012 is an abundant number, since it is smaller than the sum of its proper divisors (167941135644).

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

121030203012 is a wasteful number, since it uses less digits than its factorization.

121030203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234554707 (or 234554705 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121030203012 its reverse (210302030121), we get a palindrome (331332233133).

The spelling of 121030203012 in words is "one hundred twenty-one billion, thirty million, two hundred three thousand, twelve".