1023420044002 has 16 divisors (see below), whose sum is σ = 1552477908600. Its totient is φ = 505928142720.

The previous prime is 1023420043981. The next prime is 1023420044021. The reversal of 1023420044002 is 2004400243201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 170791266361 + 852628777641 = 413269^2 + 923379^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2740324 + ... + 3091312.

Almost surely, 2^{1023420044002} is an apocalyptic number.

1023420044002 is a deficient number, since it is larger than the sum of its proper divisors (529057864598).

1023420044002 is a wasteful number, since it uses less digits than its factorization.

1023420044002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367461.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 1023420044002 its reverse (2004400243201), we get a palindrome (3027820287203).

It can be divided in two parts, 1023 and 420044002, that added together give a square (420045025 = 20495²).

The spelling of 1023420044002 in words is "one trillion, twenty-three billion, four hundred twenty million, forty-four thousand, two".