1312100104645 has 32 divisors (see below), whose sum is σ = 1754156113920. Its totient is φ = 934190400000.

The previous prime is 1312100104643. The next prime is 1312100104673. The reversal of 1312100104645 is 5464010012131.

It is not a de Polignac number, because 1312100104645 - 2¹ = 1312100104643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312100104643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 832581 + ... + 1821370.

It is an arithmetic number, because the mean of its divisors is an integer number (54817378560).

Almost surely, 2^{1312100104645} is an apocalyptic number.

It is an amenable number.

1312100104645 is a deficient number, since it is larger than the sum of its proper divisors (442056009275).

1312100104645 is a wasteful number, since it uses less digits than its factorization.

1312100104645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654157.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 1312100104645 its reverse (5464010012131), we get a palindrome (6776110116776).

The spelling of 1312100104645 in words is "one trillion, three hundred twelve billion, one hundred million, one hundred four thousand, six hundred forty-five".