42121012523410 has 32 divisors (see below), whose sum is σ = 75928192516800. Its totient is φ = 16823879755200.

The previous prime is 42121012523371. The next prime is 42121012523431. The reversal of 42121012523410 is 1432521012124.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328137021 + ... + 328265359.

It is an arithmetic number, because the mean of its divisors is an integer number (2372756016150).

Almost surely, 2^{42121012523410} is an apocalyptic number.

42121012523410 is a deficient number, since it is larger than the sum of its proper divisors (33807179993390).

42121012523410 is a wasteful number, since it uses less digits than its factorization.

42121012523410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175866.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 42121012523410 its reverse (1432521012124), we get a palindrome (43553533535534).

The spelling of 42121012523410 in words is "forty-two trillion, one hundred twenty-one billion, twelve million, five hundred twenty-three thousand, four hundred ten".