2101305660434 has 4 divisors (see below), whose sum is σ = 3151958490654. Its totient is φ = 1050652830216.

The previous prime is 2101305660407. The next prime is 2101305660451. The reversal of 2101305660434 is 4340665031012.

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., 1669587015625 + 431718644809 = 1292125^2 + 657053^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2101305660394 and 2101305660403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525326415107 + ... + 525326415110.

Almost surely, 2^{2101305660434} is an apocalyptic number.

2101305660434 is a deficient number, since it is larger than the sum of its proper divisors (1050652830220).

2101305660434 is a wasteful number, since it uses less digits than its factorization.

2101305660434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050652830219.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 2101305660434 in words is "two trillion, one hundred one billion, three hundred five million, six hundred sixty thousand, four hundred thirty-four".