101233420434 has 56 divisors (see below), whose sum is σ = 227853250560. Its totient is φ = 33717468888.

The previous prime is 101233420399. The next prime is 101233420439. The reversal of 101233420434 is 434024332101.

101233420434 is a `hidden beast` number, since 1 + 0 + 1 + 233 + 420 + 4 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 101233420398 and 101233420407.

It is not an unprimeable number, because it can be changed into a prime (101233420439) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1837639 + ... + 1891925.

Almost surely, 2^101233420434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101233420434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113926625280).

101233420434 is an abundant number, since it is smaller than the sum of its proper divisors (126619830126).

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

101233420434 is an equidigital number, since it uses as much as digits as its factorization.

101233420434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55586 (or 55571 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 101233420434 its reverse (434024332101), we get a palindrome (535257752535).

The spelling of 101233420434 in words is "one hundred one billion, two hundred thirty-three million, four hundred twenty thousand, four hundred thirty-four".