2121132333131 has 16 divisors (see below), whose sum is σ = 2606030453760. Its totient is φ = 1685775939840.

The previous prime is 2121132333127. The next prime is 2121132333149. The reversal of 2121132333131 is 1313332311212.

It is a cyclic number.

It is not a de Polignac number, because 2121132333131 - 2² = 2121132333127 is a prime.

It is a super-2 number, since 2×2121132333131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121132333131.

It is not an unprimeable number, because it can be changed into a prime (2121132333161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169657190 + ... + 169669691.

It is an arithmetic number, because the mean of its divisors is an integer number (162876903360).

Almost surely, 2^{2121132333131} is an apocalyptic number.

2121132333131 is a deficient number, since it is larger than the sum of its proper divisors (484898120629).

2121132333131 is a wasteful number, since it uses less digits than its factorization.

2121132333131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339326954.

The product of its digits is 1944, while the sum is 26.

Adding to 2121132333131 its reverse (1313332311212), we get a palindrome (3434464644343).

The spelling of 2121132333131 in words is "two trillion, one hundred twenty-one billion, one hundred thirty-two million, three hundred thirty-three thousand, one hundred thirty-one".