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2131212011302 = 211173559961117
BaseRepresentation
bin11111000000110110001…
…000101000011100100110
321112202000211101122112101
4133000312020220130212
5234404210233330202
64311022033442314
7306655264125043
oct37006610503446
97482024348471
102131212011302
1175192968aa50
122a506271039a
13125c8457754a
1475218cd41ca
153a687450887
hex1f036228726

2131212011302 has 16 divisors (see below), whose sum is σ = 3507596443152. Its totient is φ = 963133119520.

The previous prime is 2131212011287. The next prime is 2131212011311. The reversal of 2131212011302 is 2031102121312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131212011302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279976753 + ... + 279984364.

It is an arithmetic number, because the mean of its divisors is an integer number (219224777697).

Almost surely, 22131212011302 is an apocalyptic number.

2131212011302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2131212011302 is a deficient number, since it is larger than the sum of its proper divisors (1376384431850).

2131212011302 is a wasteful number, since it uses less digits than its factorization.

2131212011302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559961303.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2131212011302 its reverse (2031102121312), we get a palindrome (4162314132614).

The spelling of 2131212011302 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, eleven thousand, three hundred two".

Divisors: 1 2 11 22 173 346 1903 3806 559961117 1119922234 6159572287 12319144574 96873273241 193746546482 1065606005651 2131212011302