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1210121002013 = 71115715857169
BaseRepresentation
bin10001100111000000110…
…101010001110000011101
311021200112102011021122212
4101213000311101300131
5124311311434031023
62323531044450205
7153266632541360
oct21470065216035
94250472137585
101210121002013
11427233837770
121766430a9965
138a1633901b1
14427da7880d7
15217284eae78
hex119c0d51c1d

1210121002013 has 8 divisors (see below), whose sum is σ = 1508722288320. Its totient is φ = 942951430080.

The previous prime is 1210121001953. The next prime is 1210121002033. The reversal of 1210121002013 is 3102001210121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1210121002013 - 234 = 1192941132829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210121002033) 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, 7857928508 + ... + 7857928661.

It is an arithmetic number, because the mean of its divisors is an integer number (188590286040).

Almost surely, 21210121002013 is an apocalyptic number.

It is an amenable number.

1210121002013 is a deficient number, since it is larger than the sum of its proper divisors (298601286307).

1210121002013 is a wasteful number, since it uses less digits than its factorization.

1210121002013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15715857187.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1210121002013 its reverse (3102001210121), we get a palindrome (4312122212134).

The spelling of 1210121002013 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, two thousand, thirteen".

Divisors: 1 7 11 77 15715857169 110011000183 172874428859 1210121002013