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1301211121 = 72294719483
BaseRepresentation
bin100110110001110…
…1110011111110001
310100200110101002111
41031203232133301
510131102223441
6333041245321
744150053300
oct11543563761
93320411074
101301211121
116085551a1
12303933841
13179770312
14c4b58437
157937e081
hex4d8ee7f1

1301211121 has 24 divisors (see below), whose sum is σ = 1599246720. Its totient is φ = 1053898272.

The previous prime is 1301211103. The next prime is 1301211151. The reversal of 1301211121 is 1211121031.

It is a happy number.

It is not a de Polignac number, because 1301211121 - 211 = 1301209073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301211151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57046 + ... + 76528.

It is an arithmetic number, because the mean of its divisors is an integer number (66635280).

Almost surely, 21301211121 is an apocalyptic number.

It is an amenable number.

1301211121 is a deficient number, since it is larger than the sum of its proper divisors (298035599).

1301211121 is a wasteful number, since it uses less digits than its factorization.

1301211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19573 (or 19566 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1301211121 is about 36072.3040711291. The cubic root of 1301211121 is about 1091.7317032079.

Adding to 1301211121 its reverse (1211121031), we get a palindrome (2512332152).

The spelling of 1301211121 in words is "one billion, three hundred one million, two hundred eleven thousand, one hundred twenty-one".

Divisors: 1 7 29 47 49 203 329 1363 1421 2303 9541 19483 66787 136381 565007 915701 954667 3955049 6409907 26555329 27685343 44869349 185887303 1301211121