2121312230030 has 32 divisors (see below), whose sum is σ = 4397154094080. Its totient is φ = 721755084960.

The previous prime is 2121312229987. The next prime is 2121312230041. The reversal of 2121312230030 is 300322131212.

It is a junction number, because it is equal to n+sod(n) for n = 2121312229984 and 2121312230011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115656710 + ... + 115675049.

It is an arithmetic number, because the mean of its divisors is an integer number (137411065440).

Almost surely, 2^{2121312230030} is an apocalyptic number.

2121312230030 is an abundant number, since it is smaller than the sum of its proper divisors (2275841864050).

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

2121312230030 is a wasteful number, since it uses less digits than its factorization.

2121312230030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231331904.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2121312230030 its reverse (300322131212), we get a palindrome (2421634361242).

The spelling of 2121312230030 in words is "two trillion, one hundred twenty-one billion, three hundred twelve million, two hundred thirty thousand, thirty".