211513130 has 32 divisors (see below), whose sum is σ = 410097600. Its totient is φ = 78285312.

The previous prime is 211513109. The next prime is 211513151. The reversal of 211513130 is 31315112.

It is an interprime number because it is at equal distance from previous prime (211513109) and next prime (211513151).

It is a junction number, because it is equal to n+sod(n) for n = 211513099 and 211513108.

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, 4775 + ... + 21114.

It is an arithmetic number, because the mean of its divisors is an integer number (12815550).

Almost surely, 2^211513130 is an apocalyptic number.

211513130 is a deficient number, since it is larger than the sum of its proper divisors (198584470).

211513130 is a wasteful number, since it uses less digits than its factorization.

211513130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25958.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 211513130 is about 14543.4909839419. The cubic root of 211513130 is about 595.8163875186.

Adding to 211513130 its reverse (31315112), we get a palindrome (242828242).

It can be divided in two parts, 21 and 1513130, that added together give a palindrome (1513151).

The spelling of 211513130 in words is "two hundred eleven million, five hundred thirteen thousand, one hundred thirty".