1210324311045 has 120 divisors (see below), whose sum is σ = 2203175859192. Its totient is φ = 635669510400.

The previous prime is 1210324311037. The next prime is 1210324311073. The reversal of 1210324311045 is 5401134230121.

1210324311045 is a `hidden beast` number, since 1 + 21 + 0 + 324 + 311 + 0 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 99372474756 + 1110951836289 = 315234^2 + 1054017^2 .

It is not a de Polignac number, because 1210324311045 - 2³ = 1210324311037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1286210275 + ... + 1286211215.

Almost surely, 2^{1210324311045} is an apocalyptic number.

1210324311045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1210324311045 is a deficient number, since it is larger than the sum of its proper divisors (992851548147).

1210324311045 is an frugal number, since it uses more digits than its factorization.

1210324311045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1210324311045 its reverse (5401134230121), we get a palindrome (6611458541166).

The spelling of 1210324311045 in words is "one trillion, two hundred ten billion, three hundred twenty-four million, three hundred eleven thousand, forty-five".