31424201 has 4 divisors (see below), whose sum is σ = 31449552. Its totient is φ = 31398852.

The previous prime is 31424191. The next prime is 31424203. The reversal of 31424201 is 10242413.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10242413 = 3001 ⋅3413.

It is a cyclic number.

It is not a de Polignac number, because 31424201 - 2²² = 27229897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31424201.

It is not an unprimeable number, because it can be changed into a prime (31424203) 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, 10715 + ... + 13328.

It is an arithmetic number, because the mean of its divisors is an integer number (7862388).

Almost surely, 2^31424201 is an apocalyptic number.

It is an amenable number.

31424201 is a deficient number, since it is larger than the sum of its proper divisors (25351).

31424201 is a wasteful number, since it uses less digits than its factorization.

31424201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25350.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 31424201 is about 5605.7293013488. The cubic root of 31424201 is about 315.5644569820.

Adding to 31424201 its reverse (10242413), we get a palindrome (41666614).

The spelling of 31424201 in words is "thirty-one million, four hundred twenty-four thousand, two hundred one".