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1301131301 = 12311056971
BaseRepresentation
bin100110110001101…
…1011000000100101
310100200022022121012
41031203123000211
510131042200201
6333035432005
744146301501
oct11543330045
93320268535
101301131301
11608500228
123038b5605
13179742ba2
14c4b37301
15793655bb
hex4d8db025

1301131301 has 4 divisors (see below), whose sum is σ = 1302189504. Its totient is φ = 1300073100.

The previous prime is 1301131277. The next prime is 1301131319. The reversal of 1301131301 is 1031311031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1031311031 = 1815697851.

It is a cyclic number.

It is not a de Polignac number, because 1301131301 - 214 = 1301114917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301131331) 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, 527255 + ... + 529716.

It is an arithmetic number, because the mean of its divisors is an integer number (325547376).

Almost surely, 21301131301 is an apocalyptic number.

It is an amenable number.

1301131301 is a deficient number, since it is larger than the sum of its proper divisors (1058203).

1301131301 is a wasteful number, since it uses less digits than its factorization.

1301131301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058202.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1301131301 is about 36071.1976651732. The cubic root of 1301131301 is about 1091.7093794397.

Adding to 1301131301 its reverse (1031311031), we get a palindrome (2332442332).

The spelling of 1301131301 in words is "one billion, three hundred one million, one hundred thirty-one thousand, three hundred one".

Divisors: 1 1231 1056971 1301131301