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121413031241 = 196390159539
BaseRepresentation
bin111000100010011000…
…1111101010101001001
3102121101111001000221212
41301010301331111021
53442123213444431
6131435410342505
711525504511005
oct1610461752511
9377344030855
10121413031241
1147544544437
121b644b8aa35
13b5abb79328
145c3ac8b705
15325907172b
hex1c44c7d549

121413031241 has 4 divisors (see below), whose sum is σ = 127803190800. Its totient is φ = 115022871684.

The previous prime is 121413031219. The next prime is 121413031261. The reversal of 121413031241 is 142130314121.

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.

It is a cyclic number.

It is not a de Polignac number, because 121413031241 - 218 = 121412769097 is a prime.

It is a super-2 number, since 2×1214130312412 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121413031211) 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, 3195079751 + ... + 3195079788.

It is an arithmetic number, because the mean of its divisors is an integer number (31950797700).

Almost surely, 2121413031241 is an apocalyptic number.

It is an amenable number.

121413031241 is a deficient number, since it is larger than the sum of its proper divisors (6390159559).

121413031241 is an equidigital number, since it uses as much as digits as its factorization.

121413031241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390159558.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 121413031241 its reverse (142130314121), we get a palindrome (263543345362).

The spelling of 121413031241 in words is "one hundred twenty-one billion, four hundred thirteen million, thirty-one thousand, two hundred forty-one".

Divisors: 1 19 6390159539 121413031241