1012123421146 has 64 divisors (see below), whose sum is σ = 1587923970048. Its totient is φ = 483417419328.

The previous prime is 1012123421129. The next prime is 1012123421147. The reversal of 1012123421146 is 6411243212101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1012123421147) 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, 699462595 + ... + 699464041.

It is an arithmetic number, because the mean of its divisors is an integer number (24811312032).

Almost surely, 2^{1012123421146} is an apocalyptic number.

1012123421146 is a deficient number, since it is larger than the sum of its proper divisors (575800548902).

1012123421146 is a wasteful number, since it uses less digits than its factorization.

1012123421146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 1012123421146 its reverse (6411243212101), we get a palindrome (7423366633247).

The spelling of 1012123421146 in words is "one trillion, twelve billion, one hundred twenty-three million, four hundred twenty-one thousand, one hundred forty-six".