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1431123013 = 5361599739
BaseRepresentation
bin101010101001101…
…0011010001000101
310200201220120201001
41111103103101011
510412331414023
6354001533301
750315226205
oct12523232105
93621816631
101431123013
116749169a1
1233b344231
1319a657968
14d80d4405
15859916ad
hex554d3445

1431123013 has 16 divisors (see below), whose sum is σ = 1486512000. Its totient is φ = 1376930880.

The previous prime is 1431123007. The next prime is 1431123041. The reversal of 1431123013 is 3103211341.

It is a cyclic number.

It is not a de Polignac number, because 1431123013 - 213 = 1431114821 is a prime.

It is a super-2 number, since 2×14311230132 = 4096226156676396338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431123913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1936198 + ... + 1936936.

It is an arithmetic number, because the mean of its divisors is an integer number (92907000).

Almost surely, 21431123013 is an apocalyptic number.

It is an amenable number.

1431123013 is a deficient number, since it is larger than the sum of its proper divisors (55388987).

1431123013 is an equidigital number, since it uses as much as digits as its factorization.

1431123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1431123013 is about 37830.1865313932. The cubic root of 1431123013 is about 1126.9180154864.

Adding to 1431123013 its reverse (3103211341), we get a palindrome (4534334354).

The spelling of 1431123013 in words is "one billion, four hundred thirty-one million, one hundred twenty-three thousand, thirteen".

Divisors: 1 53 61 599 739 3233 31747 36539 39167 45079 442661 1936567 2389187 23461033 27002321 1431123013