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1230321322420 = 225131469588291
BaseRepresentation
bin10001111001110100110…
…111011000100110110100
311100121200012121212211221
4101321310313120212310
5130124144224304140
62341111331440124
7154613336455651
oct21716467304664
94317605555757
101230321322420
1143485a348443
1217a540156044
138c032404bc8
14437954d6c28
152200bb3614a
hex11e74dd89b4

1230321322420 has 24 divisors (see below), whose sum is σ = 2603397490848. Its totient is φ = 488371821600.

The previous prime is 1230321322397. The next prime is 1230321322487. The reversal of 1230321322420 is 242231230321.

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, 234791526 + ... + 234796765.

It is an arithmetic number, because the mean of its divisors is an integer number (108474895452).

Almost surely, 21230321322420 is an apocalyptic number.

1230321322420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230321322420 is an abundant number, since it is smaller than the sum of its proper divisors (1373076168428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230321322420 is a wasteful number, since it uses less digits than its factorization.

1230321322420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469588431 (or 469588429 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1230321322420 its reverse (242231230321), we get a palindrome (1472552552741).

The spelling of 1230321322420 in words is "one trillion, two hundred thirty billion, three hundred twenty-one million, three hundred twenty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 469588291 939176582 1878353164 2347941455 4695882910 9391765820 61516066121 123032132242 246064264484 307580330605 615160661210 1230321322420