121231302030012 has 24 divisors (see below), whose sum is σ = 283712423949136. Its totient is φ = 40290521741568.

The previous prime is 121231302029983. The next prime is 121231302030103. The reversal of 121231302030012 is 210030203132121.

121231302030012 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14989029343 + ... + 14989037430.

Almost surely, 2^{121231302030012} is an apocalyptic number.

121231302030012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121231302030012 is an abundant number, since it is smaller than the sum of its proper divisors (162481121919124).

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

121231302030012 is a wasteful number, since it uses less digits than its factorization.

121231302030012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29978067117 (or 29978067115 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121231302030012 its reverse (210030203132121), we get a palindrome (331261505162133).

The spelling of 121231302030012 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, three hundred two million, thirty thousand, twelve".