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1310112312222 = 23731193150291
BaseRepresentation
bin10011000100001000110…
…001110110101110011110
311122020121222110010202110
4103010020301312232132
5132431102222442342
62441505101334450
7163436542625250
oct23041061665636
94566558403673
101310112312222
1146568527801a
12191aa9b67426
139670a14953c
14475a45c5cd0
152412babac9c
hex13108c76b9e

1310112312222 has 16 divisors (see below), whose sum is σ = 2994542428032. Its totient is φ = 374317803480.

The previous prime is 1310112312211. The next prime is 1310112312277. The reversal of 1310112312222 is 2222132110131.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 15596575104 + ... + 15596575187.

It is an arithmetic number, because the mean of its divisors is an integer number (187158901752).

Almost surely, 21310112312222 is an apocalyptic number.

1310112312222 is an abundant number, since it is smaller than the sum of its proper divisors (1684430115810).

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

1310112312222 is a wasteful number, since it uses less digits than its factorization.

1310112312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31193150303.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1310112312222 its reverse (2222132110131), we get a palindrome (3532244422353).

The spelling of 1310112312222 in words is "one trillion, three hundred ten billion, one hundred twelve million, three hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 31193150291 62386300582 93579450873 187158901746 218352052037 436704104074 655056156111 1310112312222