402501021013042 has 32 divisors (see below), whose sum is σ = 730591214637312. Its totient is φ = 162353102774784.

The previous prime is 402501021012977. The next prime is 402501021013051. The reversal of 402501021013042 is 240310120105204.

It is a junction number, because it is equal to n+sod(n) for n = 402501021012998 and 402501021013016.

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 15 ways as a sum of consecutive naturals, for example, 288908958 + ... + 290298790.

It is an arithmetic number, because the mean of its divisors is an integer number (22830975457416).

Almost surely, 2^{402501021013042} is an apocalyptic number.

402501021013042 is a deficient number, since it is larger than the sum of its proper divisors (328090193624270).

402501021013042 is a wasteful number, since it uses less digits than its factorization.

402501021013042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606682.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 402501021013042 its reverse (240310120105204), we get a palindrome (642811141118246).

The spelling of 402501021013042 in words is "four hundred two trillion, five hundred one billion, twenty-one million, thirteen thousand, forty-two".