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421042115230231 = 11234547163193543
BaseRepresentation
bin101111110111011111000000…
…1101101101011101000010111
32001012210020021221101102011111
41133232332001231223220113
5420141323222444331411
64051252024423115451
7154454201056163125
oct13756760155535027
92035706257342144
10421042115230231
1111217aa5a558420
123b2809485a2b87
13150c2141170aa1
1475d87933ac915
1533a2411c87721
hex17eef81b6ba17

421042115230231 has 8 divisors (see below), whose sum is σ = 459320632297344. Its totient is φ = 382763925019320.

The previous prime is 421042115230223. The next prime is 421042115230267. The reversal of 421042115230231 is 132032511240124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421042115230231 - 23 = 421042115230223 is a prime.

It is a super-2 number, since 2×4210421152302312 (a number of 30 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 = 421042115230193 and 421042115230202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421042115230201) 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, 79016755 + ... + 84176788.

It is an arithmetic number, because the mean of its divisors is an integer number (57415079037168).

Almost surely, 2421042115230231 is an apocalyptic number.

421042115230231 is a deficient number, since it is larger than the sum of its proper divisors (38278517067113).

421042115230231 is a wasteful number, since it uses less digits than its factorization.

421042115230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163428101.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 421042115230231 its reverse (132032511240124), we get a palindrome (553074626470355).

The spelling of 421042115230231 in words is "four hundred twenty-one trillion, forty-two billion, one hundred fifteen million, two hundred thirty thousand, two hundred thirty-one".

Divisors: 1 11 234547 2580017 163193543 1795128973 38276555930021 421042115230231