30401331 has 16 divisors (see below), whose sum is σ = 42425856. Its totient is φ = 19327616.

The previous prime is 30401269. The next prime is 30401351. The reversal of 30401331 is 13310403.

It is a cyclic number.

It is not a de Polignac number, because 30401331 - 2⁹ = 30400819 is a prime.

It is a super-2 number, since 2×30401331² = 1848481853143122, which contains 22 as substring.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 30401331.

It is not an unprimeable number, because it can be changed into a prime (30401351) 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, 40546 + ... + 41288.

It is an arithmetic number, because the mean of its divisors is an integer number (2651616).

Almost surely, 2^30401331 is an apocalyptic number.

30401331 is a deficient number, since it is larger than the sum of its proper divisors (12024525).

30401331 is a wasteful number, since it uses less digits than its factorization.

30401331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 30401331 is about 5513.7402006261. The cubic root of 30401331 is about 312.1027049286.

Adding to 30401331 its reverse (13310403), we get a palindrome (43711734).

It can be divided in two parts, 3040 and 1331, that added together give a triangular number (4371 = T₉₃).

The spelling of 30401331 in words is "thirty million, four hundred one thousand, three hundred thirty-one".