307113121 has 4 divisors (see below), whose sum is σ = 350986432. Its totient is φ = 263239812.

The previous prime is 307113097. The next prime is 307113137. The reversal of 307113121 is 121311703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 307113121 - 2²¹ = 305015969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (307113151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21936645 + ... + 21936658.

It is an arithmetic number, because the mean of its divisors is an integer number (87746608).

Almost surely, 2^307113121 is an apocalyptic number.

It is an amenable number.

307113121 is a deficient number, since it is larger than the sum of its proper divisors (43873311).

307113121 is an equidigital number, since it uses as much as digits as its factorization.

307113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43873310.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 307113121 is about 17524.6432488653. The cubic root of 307113121 is about 674.6825180961.

Adding to 307113121 its reverse (121311703), we get a palindrome (428424824).

The spelling of 307113121 in words is "three hundred seven million, one hundred thirteen thousand, one hundred twenty-one".