211431103130 has 32 divisors (see below), whose sum is σ = 409875757200. Its totient is φ = 78062164992.

The previous prime is 211431103127. The next prime is 211431103133. The reversal of 211431103130 is 31301134112.

It is an interprime number because it is at equal distance from previous prime (211431103127) and next prime (211431103133).

It can be written as a sum of positive squares in 8 ways, for example, as 181623425929 + 29807677201 = 426173^2 + 172649^2 .

It is a super-2 number, since 2×211431103130² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211431103133) 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, 2713556 + ... + 2790384.

Almost surely, 2^211431103130 is an apocalyptic number.

211431103130 is a deficient number, since it is larger than the sum of its proper divisors (198444654070).

211431103130 is a wasteful number, since it uses less digits than its factorization.

211431103130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98018.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211431103130 its reverse (31301134112), we get a palindrome (242732237242).

The spelling of 211431103130 in words is "two hundred eleven billion, four hundred thirty-one million, one hundred three thousand, one hundred thirty".