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121030012313 = 7171017058927
BaseRepresentation
bin111000010110111110…
…0110110110110011001
3102120101210022122202122
41300231330312312121
53440332140343223
6131333405111025
711513144062520
oct1605574666631
9376353278678
10121030012313
1147368317671
121b558858475
13b54a702002
145c020674b7
1532356145c8
hex1c2df36d99

121030012313 has 8 divisors (see below), whose sum is σ = 146456485632. Its totient is φ = 97637656896.

The previous prime is 121030012309. The next prime is 121030012349. The reversal of 121030012313 is 313210030121.

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 121030012313 - 22 = 121030012309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121030012291 and 121030012300.

It is not an unprimeable number, because it can be changed into a prime (121030012303) 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, 508529345 + ... + 508529582.

It is an arithmetic number, because the mean of its divisors is an integer number (18307060704).

Almost surely, 2121030012313 is an apocalyptic number.

It is an amenable number.

121030012313 is a deficient number, since it is larger than the sum of its proper divisors (25426473319).

121030012313 is a wasteful number, since it uses less digits than its factorization.

121030012313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017058951.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 121030012313 its reverse (313210030121), we get a palindrome (434240042434).

The spelling of 121030012313 in words is "one hundred twenty-one billion, thirty million, twelve thousand, three hundred thirteen".

Divisors: 1 7 17 119 1017058927 7119412489 17290001759 121030012313