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1210143131413 = 2941729073497
BaseRepresentation
bin10001100111000010001…
…001101100011100010101
311021200120221210120111021
4101213002021230130111
5124311333120201123
62323533155041141
7153300321616516
oct21470211543425
94250527716437
101210143131413
11427245281927
1217664a5a01b1
138a167b3a908
14427dd6a8a0d
152172a41cc5d
hex119c226c715

1210143131413 has 4 divisors (see below), whose sum is σ = 1251872204940. Its totient is φ = 1168414057888.

The previous prime is 1210143131399. The next prime is 1210143131429. The reversal of 1210143131413 is 3141313410121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 753698312964 + 456444818449 = 868158^2 + 675607^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210143131413 - 25 = 1210143131381 is a prime.

It is a super-2 number, since 2×12101431314132 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210143131443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20864536720 + ... + 20864536777.

It is an arithmetic number, because the mean of its divisors is an integer number (312968051235).

Almost surely, 21210143131413 is an apocalyptic number.

It is an amenable number.

1210143131413 is a deficient number, since it is larger than the sum of its proper divisors (41729073527).

1210143131413 is an equidigital number, since it uses as much as digits as its factorization.

1210143131413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41729073526.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 1210143131413 its reverse (3141313410121), we get a palindrome (4351456541534).

The spelling of 1210143131413 in words is "one trillion, two hundred ten billion, one hundred forty-three million, one hundred thirty-one thousand, four hundred thirteen".

Divisors: 1 29 41729073497 1210143131413