1210400130042 has 24 divisors (see below), whose sum is σ = 2719664490816. Its totient is φ = 403466709852.

The previous prime is 1210400130013. The next prime is 1210400130077. The reversal of 1210400130042 is 2400310040121.

1210400130042 is a `hidden beast` number, since 1 + 210 + 400 + 13 + 0 + 0 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1210400129997 and 1210400130024.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1245267138 + ... + 1245268109.

It is an arithmetic number, because the mean of its divisors is an integer number (113319353784).

Almost surely, 2^{1210400130042} is an apocalyptic number.

1210400130042 is an abundant number, since it is smaller than the sum of its proper divisors (1509264360774).

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

1210400130042 is an equidigital number, since it uses as much as digits as its factorization.

1210400130042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490535264 (or 2490535252 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1210400130042 its reverse (2400310040121), we get a palindrome (3610710170163).

The spelling of 1210400130042 in words is "one trillion, two hundred ten billion, four hundred million, one hundred thirty thousand, forty-two".