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102121230110231 = 1929185337985681
BaseRepresentation
bin10111001110000011110011…
…101001010000111000010111
3111101120200202010000001202102
4113032003303221100320113
5101341123234402011411
61001105502341432315
730340005165446033
oct2716036351207027
9441520663001672
10102121230110231
112a5a2409114102
12b55394140b69b
1344c9cb569c047
141b309a01351c3
15bc161a739d3b
hex5ce0f3a50e17

102121230110231 has 8 divisors (see below), whose sum is σ = 111202791409200. Its totient is φ = 93410344782720.

The previous prime is 102121230110213. The next prime is 102121230110239. The reversal of 102121230110231 is 132011032121201.

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 102121230110231 - 234 = 102104050241047 is a prime.

It is a super-2 number, since 2×1021212301102312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121230110239) 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, 92668992290 + ... + 92668993391.

It is an arithmetic number, because the mean of its divisors is an integer number (13900348926150).

Almost surely, 2102121230110231 is an apocalyptic number.

102121230110231 is a deficient number, since it is larger than the sum of its proper divisors (9081561298969).

102121230110231 is a wasteful number, since it uses less digits than its factorization.

102121230110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185337985729.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 102121230110231 its reverse (132011032121201), we get a palindrome (234132262231432).

The spelling of 102121230110231 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred thirty million, one hundred ten thousand, two hundred thirty-one".

Divisors: 1 19 29 551 185337985681 3521421727939 5374801584749 102121230110231