31420363 has 8 divisors (see below), whose sum is σ = 34752368. Its totient is φ = 28219104.

The previous prime is 31420343. The next prime is 31420379. The reversal of 31420363 is 36302413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31420363 is a prime.

It is a super-2 number, since 2×31420363² = 1974478422103538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31420303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32181 + ... + 33142.

It is an arithmetic number, because the mean of its divisors is an integer number (4344046).

Almost surely, 2^31420363 is an apocalyptic number.

31420363 is a deficient number, since it is larger than the sum of its proper divisors (3332005).

31420363 is a wasteful number, since it uses less digits than its factorization.

31420363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65373.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 31420363 is about 5605.3869625566. The cubic root of 31420363 is about 315.5516092865.

Adding to 31420363 its reverse (36302413), we get a palindrome (67722776).

The spelling of 31420363 in words is "thirty-one million, four hundred twenty thousand, three hundred sixty-three".