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31303301011 = 311981710253
BaseRepresentation
bin11101001001110100…
…100111011110010011
32222210120200110020221
4131021310213132103
51003102121113021
622214110213511
72155503445153
oct351164473623
988716613227
1031303301011
1112303996404
1260974b4297
132c4b3b7728
14172d588763
15c3326c241
hex749d27793

31303301011 has 8 divisors (see below), whose sum is σ = 31410216864. Its totient is φ = 31196425920.

The previous prime is 31303300969. The next prime is 31303301053. The reversal of 31303301011 is 11010330313.

It is an interprime number because it is at equal distance from previous prime (31303300969) and next prime (31303301053).

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 31303301011 - 219 = 31302776723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31303301111) 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, 3047961 + ... + 3058213.

It is an arithmetic number, because the mean of its divisors is an integer number (3926277108).

Almost surely, 231303301011 is an apocalyptic number.

31303301011 is a deficient number, since it is larger than the sum of its proper divisors (106915853).

31303301011 is a wasteful number, since it uses less digits than its factorization.

31303301011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20381.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 31303301011 its reverse (11010330313), we get a palindrome (42313631324).

The spelling of 31303301011 in words is "thirty-one billion, three hundred three million, three hundred one thousand, eleven".

Divisors: 1 311 9817 10253 3053087 3188683 100653701 31303301011