421133031 has 12 divisors (see below), whose sum is σ = 663603720. Its totient is φ = 255232080.

The previous prime is 421133029. The next prime is 421133087. The reversal of 421133031 is 130331124.

It is not a de Polignac number, because 421133031 - 2¹ = 421133029 is a prime.

It is a super-2 number, since 2×421133031² = 354706059598493922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421132995 and 421133013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421133431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2126836 + ... + 2127033.

It is an arithmetic number, because the mean of its divisors is an integer number (55300310).

Almost surely, 2^421133031 is an apocalyptic number.

421133031 is a deficient number, since it is larger than the sum of its proper divisors (242470689).

421133031 is a wasteful number, since it uses less digits than its factorization.

421133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253886 (or 4253883 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 421133031 is about 20521.5260397467. The cubic root of 421133031 is about 749.5600566503.

Adding to 421133031 its reverse (130331124), we get a palindrome (551464155).

The spelling of 421133031 in words is "four hundred twenty-one million, one hundred thirty-three thousand, thirty-one".