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1011102312031 = 72292647238291
BaseRepresentation
bin11101011011010100110…
…01001110011001011111
310120122211110101022102221
432231222121032121133
5113031214142441111
62052254411330211
7133023025563460
oct16555231163137
93518743338387
101011102312031
1135a895994289
12143b60150967
1374467466146
1436d1ab4ad67
151b47b2b5371
hexeb6a64e65f

1011102312031 has 16 divisors (see below), whose sum is σ = 1161034877440. Its totient is φ = 862544985120.

The previous prime is 1011102311953. The next prime is 1011102312037. The reversal of 1011102312031 is 1302132011101.

It is a happy number.

It is not a de Polignac number, because 1011102312031 - 27 = 1011102311903 is a prime.

It is a super-2 number, since 2×10111023120312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011102311996 and 1011102312014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011102312037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4123996 + ... + 4362286.

It is an arithmetic number, because the mean of its divisors is an integer number (72564679840).

Almost surely, 21011102312031 is an apocalyptic number.

1011102312031 is a deficient number, since it is larger than the sum of its proper divisors (149932565409).

1011102312031 is a wasteful number, since it uses less digits than its factorization.

1011102312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241174.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1011102312031 its reverse (1302132011101), we get a palindrome (2313234323132).

The spelling of 1011102312031 in words is "one trillion, eleven billion, one hundred two million, three hundred twelve thousand, thirty-one".

Divisors: 1 7 229 1603 2647 18529 238291 606163 1668037 4243141 54568639 381980473 630756277 4415293939 144443187433 1011102312031