2121320000030 has 32 divisors (see below), whose sum is σ = 4760572677120. Its totient is φ = 661190649120.

The previous prime is 2121320000029. The next prime is 2121320000053. The reversal of 2121320000030 is 300000231212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

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, 1377479750 + ... + 1377481289.

It is an arithmetic number, because the mean of its divisors is an integer number (148767896160).

Almost surely, 2^{2121320000030} is an apocalyptic number.

2121320000030 is an abundant number, since it is smaller than the sum of its proper divisors (2639252677090).

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

2121320000030 is a wasteful number, since it uses less digits than its factorization.

2121320000030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754961064.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 2121320000030 its reverse (300000231212), we get a palindrome (2421320231242).

The spelling of 2121320000030 in words is "two trillion, one hundred twenty-one billion, three hundred twenty million, thirty", and thus it is an aban number.