420211103021142 has 32 divisors (see below), whose sum is σ = 884701487243520. Its totient is φ = 132691263032160.

The previous prime is 420211103021131. The next prime is 420211103021147. The reversal of 420211103021142 is 241120301112024.

It is a super-2 number, since 2×420211103021142² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420211103021147) 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, 94767834 + ... + 99102797.

It is an arithmetic number, because the mean of its divisors is an integer number (27646921476360).

Almost surely, 2^{420211103021142} is an apocalyptic number.

420211103021142 is an abundant number, since it is smaller than the sum of its proper divisors (464490384222378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420211103021142 is a wasteful number, since it uses less digits than its factorization.

420211103021142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193889668.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 420211103021142 its reverse (241120301112024), we get a palindrome (661331404133166).

The spelling of 420211103021142 in words is "four hundred twenty trillion, two hundred eleven billion, one hundred three million, twenty-one thousand, one hundred forty-two".