2121131311030 has 16 divisors (see below), whose sum is σ = 3818573558640. Its totient is φ = 848333146912.

The previous prime is 2121131310967. The next prime is 2121131311043. The reversal of 2121131311030 is 301131311212.

It is a junction number, because it is equal to n+sod(n) for n = 2121131310989 and 2121131311007.

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, 14847544 + ... + 14989723.

It is an arithmetic number, because the mean of its divisors is an integer number (238660847415).

Almost surely, 2^{2121131311030} is an apocalyptic number.

2121131311030 is a deficient number, since it is larger than the sum of its proper divisors (1697442247610).

2121131311030 is a wasteful number, since it uses less digits than its factorization.

2121131311030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29844383.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2121131311030 its reverse (301131311212), we get a palindrome (2422262622242).

The spelling of 2121131311030 in words is "two trillion, one hundred twenty-one billion, one hundred thirty-one million, three hundred eleven thousand, thirty".