1012402314021 has 16 divisors (see below), whose sum is σ = 1544455437824. Its totient is φ = 577860426864.

The previous prime is 1012402314013. The next prime is 1012402314037. The reversal of 1012402314021 is 1204132042101.

It is not a de Polignac number, because 1012402314021 - 2³ = 1012402314013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012402314041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27280231 + ... + 27317316.

It is an arithmetic number, because the mean of its divisors is an integer number (96528464864).

Almost surely, 2^{1012402314021} is an apocalyptic number.

It is an amenable number.

1012402314021 is a deficient number, since it is larger than the sum of its proper divisors (532053123803).

1012402314021 is an equidigital number, since it uses as much as digits as its factorization.

1012402314021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54598440.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1012402314021 its reverse (1204132042101), we get a palindrome (2216534356122).

The spelling of 1012402314021 in words is "one trillion, twelve billion, four hundred two million, three hundred fourteen thousand, twenty-one".