2121402034 has 4 divisors (see below), whose sum is σ = 3182103054. Its totient is φ = 1060701016.

The previous prime is 2121401999. The next prime is 2121402043. The reversal of 2121402034 is 4302041212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1262736225 + 858665809 = 35535^2 + 29303^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530350507 + ... + 530350510.

Almost surely, 2^2121402034 is an apocalyptic number.

2121402034 is a deficient number, since it is larger than the sum of its proper divisors (1060701020).

2121402034 is a wasteful number, since it uses less digits than its factorization.

2121402034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060701019.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2121402034 is about 46058.6803328102. The cubic root of 2121402034 is about 1284.9147867004.

Adding to 2121402034 its reverse (4302041212), we get a palindrome (6423443246).

The spelling of 2121402034 in words is "two billion, one hundred twenty-one million, four hundred two thousand, thirty-four".