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11312102012 = 2227491028747
BaseRepresentation
bin10101000100100000…
…01111101001111100
31002012100201022201012
422202100033221330
5141131344231022
65110253334352
7550216165151
oct124220175174
932170638635
1011312102012
114885428742
1222384973b8
1310b37a19b3
14794514228
1546318dde2
hex2a240fa7c

11312102012 has 12 divisors (see below), whose sum is σ = 19803399000. Its totient is φ = 5653988016.

The previous prime is 11312102003. The next prime is 11312102023. The reversal of 11312102012 is 21020121311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503378 + ... + 525369.

It is an arithmetic number, because the mean of its divisors is an integer number (1650283250).

Almost surely, 211312102012 is an apocalyptic number.

It is an amenable number.

11312102012 is a deficient number, since it is larger than the sum of its proper divisors (8491296988).

11312102012 is a wasteful number, since it uses less digits than its factorization.

11312102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031500 (or 1031498 counting only the distinct ones).

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

Adding to 11312102012 its reverse (21020121311), we get a palindrome (32332223323).

The spelling of 11312102012 in words is "eleven billion, three hundred twelve million, one hundred two thousand, twelve".

Divisors: 1 2 4 2749 5498 10996 1028747 2057494 4114988 2828025503 5656051006 11312102012