424212131 has 16 divisors (see below), whose sum is σ = 490070016. Its totient is φ = 359686656.

The previous prime is 424212121. The next prime is 424212133. The reversal of 424212131 is 131212424.

It is a de Polignac number, because none of the positive numbers 2^k-424212131 is a prime.

It is a super-2 number, since 2×424212131² = 359911864175122322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424212133) 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, 512540 + ... + 513366.

It is an arithmetic number, because the mean of its divisors is an integer number (30629376).

Almost surely, 2^424212131 is an apocalyptic number.

424212131 is a deficient number, since it is larger than the sum of its proper divisors (65857885).

424212131 is a wasteful number, since it uses less digits than its factorization.

424212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538.

The product of its digits is 384, while the sum is 20.

The square root of 424212131 is about 20596.4106338944. The cubic root of 424212131 is about 751.3824168511.

Adding to 424212131 its reverse (131212424), we get a palindrome (555424555).

The spelling of 424212131 in words is "four hundred twenty-four million, two hundred twelve thousand, one hundred thirty-one".