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102013311331 = 1910750178707
BaseRepresentation
bin101111100000001110…
…1111001100101100011
3100202022111001011012001
41133000131321211203
53132410401430311
6114510403144431
710240661560561
oct1370035714543
9322274034161
10102013311331
113a299944768
1217930075117
139809967919
144d1a5c2a31
1529c0d7b4c1
hex17c0779963

102013311331 has 8 divisors (see below), whose sum is σ = 108386009280. Its totient is φ = 95740971048.

The previous prime is 102013311329. The next prime is 102013311343. The reversal of 102013311331 is 133113310201.

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 102013311331 - 21 = 102013311329 is a prime.

It is a super-2 number, since 2×1020133113312 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102013311299 and 102013311308.

It is not an unprimeable number, because it can be changed into a prime (102013311311) 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, 25087321 + ... + 25091386.

It is an arithmetic number, because the mean of its divisors is an integer number (13548251160).

Almost surely, 2102013311331 is an apocalyptic number.

102013311331 is a deficient number, since it is larger than the sum of its proper divisors (6372697949).

102013311331 is a wasteful number, since it uses less digits than its factorization.

102013311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50178833.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 102013311331 its reverse (133113310201), we get a palindrome (235126621532).

The spelling of 102013311331 in words is "one hundred two billion, thirteen million, three hundred eleven thousand, three hundred thirty-one".

Divisors: 1 19 107 2033 50178707 953395433 5369121649 102013311331