420413221031 has 8 divisors (see below), whose sum is σ = 438714801504. Its totient is φ = 402113536000.

The previous prime is 420413221001. The next prime is 420413221099. The reversal of 420413221031 is 130122314024.

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-420413221031 is a prime.

It is a super-2 number, since 2×420413221031² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420413220988 and 420413221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420413221001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10970 + ... + 917031.

It is an arithmetic number, because the mean of its divisors is an integer number (54839350188).

Almost surely, 2^420413221031 is an apocalyptic number.

420413221031 is a deficient number, since it is larger than the sum of its proper divisors (18301580473).

420413221031 is a wasteful number, since it uses less digits than its factorization.

420413221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947721.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 420413221031 its reverse (130122314024), we get a palindrome (550535535055).

The spelling of 420413221031 in words is "four hundred twenty billion, four hundred thirteen million, two hundred twenty-one thousand, thirty-one".