30501131 has 2 divisors, whose sum is σ = 30501132. Its totient is φ = 30501130.

The previous prime is 30501109. The next prime is 30501139. The reversal of 30501131 is 13110503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30501131 - 2¹⁴ = 30484747 is a prime.

It is a super-2 number, since 2×30501131² = 1860637984558322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30501139) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15250565 + 15250566.

It is an arithmetic number, because the mean of its divisors is an integer number (15250566).

Almost surely, 2^30501131 is an apocalyptic number.

30501131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30501131 is an equidigital number, since it uses as much as digits as its factorization.

30501131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 30501131 is about 5522.7829035732. The cubic root of 30501131 is about 312.4438503917.

Adding to 30501131 its reverse (13110503), we get a palindrome (43611634).

The spelling of 30501131 in words is "thirty million, five hundred one thousand, one hundred thirty-one".