420650513131 has 4 divisors (see below), whose sum is σ = 420678776664. Its totient is φ = 420622249600.

The previous prime is 420650513123. The next prime is 420650513197. The reversal of 420650513131 is 131315056024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420650513131 - 2³ = 420650513123 is a prime.

It is a super-2 number, since 2×420650513131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420650513093 and 420650513102.

It is not an unprimeable number, because it can be changed into a prime (420650510131) 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, 14109430 + ... + 14139211.

It is an arithmetic number, because the mean of its divisors is an integer number (105169694166).

Almost surely, 2^420650513131 is an apocalyptic number.

420650513131 is a deficient number, since it is larger than the sum of its proper divisors (28263533).

420650513131 is a wasteful number, since it uses less digits than its factorization.

420650513131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28263532.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 420650513131 its reverse (131315056024), we get a palindrome (551965569155).

The spelling of 420650513131 in words is "four hundred twenty billion, six hundred fifty million, five hundred thirteen thousand, one hundred thirty-one".