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420122411431 = 3111350875921
BaseRepresentation
bin1100001110100010011…
…11110100000110100111
31111011102001102210011021
412013101033310012213
523340402314131211
6521000201152011
742232011401362
oct6072117640647
91434361383137
10420122411431
1115219a16a998
126950a18b607
13308044a5678
14164968310d9
15addd294771
hex61d13f41a7

420122411431 has 4 divisors (see below), whose sum is σ = 421473287664. Its totient is φ = 418771535200.

The previous prime is 420122411399. The next prime is 420122411447. The reversal of 420122411431 is 134114221024.

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 420122411431 - 25 = 420122411399 is a prime.

It is a super-2 number, since 2×4201224114312 (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 = 420122411396 and 420122411405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420122411491) 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, 675437650 + ... + 675438271.

It is an arithmetic number, because the mean of its divisors is an integer number (105368321916).

Almost surely, 2420122411431 is an apocalyptic number.

420122411431 is a deficient number, since it is larger than the sum of its proper divisors (1350876233).

420122411431 is a wasteful number, since it uses less digits than its factorization.

420122411431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350876232.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 420122411431 its reverse (134114221024), we get a palindrome (554236632455).

The spelling of 420122411431 in words is "four hundred twenty billion, one hundred twenty-two million, four hundred eleven thousand, four hundred thirty-one".

Divisors: 1 311 1350875921 420122411431