30311158201 has 3 divisors (see below), whose sum is σ = 30311332303. Its totient is φ = 30310984100.

The previous prime is 30311158183. The next prime is 30311158243. The reversal of 30311158201 is 10285111303.

The square root of 30311158201 is 174101.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 11162133801 + 19149024400 = 105651^2 + 138380^2 .

It is not a de Polignac number, because 30311158201 - 2²⁷ = 30176940473 is a prime.

It is a super-2 number, since 2×30311158201² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30311158301) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 87051 + ... + 261151.

Almost surely, 2^30311158201 is an apocalyptic number.

30311158201 is the 174101-st square number.

30311158201 is the 87051-st centered octagonal number.

It is an amenable number.

30311158201 is a deficient number, since it is larger than the sum of its proper divisors (174102).

30311158201 is an frugal number, since it uses more digits than its factorization.

30311158201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348202 (or 174101 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

Multiplying 30311158201 by its sum of digits (25), we get a square (757778955025 = 870505²).

Adding to 30311158201 its reverse (10285111303), we get a palindrome (40596269504).

The spelling of 30311158201 in words is "thirty billion, three hundred eleven million, one hundred fifty-eight thousand, two hundred one".