133430401020 has 48 divisors (see below), whose sum is σ = 426977284608. Its totient is φ = 30498377280.

The previous prime is 133430401001. The next prime is 133430401037. The reversal of 133430401020 is 20104034331.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent 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, 158845296 + ... + 158846135.

It is an arithmetic number, because the mean of its divisors is an integer number (8895360096).

Almost surely, 2^133430401020 is an apocalyptic number.

133430401020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133430401020 is an abundant number, since it is smaller than the sum of its proper divisors (293546883588).

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

133430401020 is a wasteful number, since it uses less digits than its factorization.

133430401020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317691450 (or 317691448 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 133430401020 its reverse (20104034331), we get a palindrome (153534435351).

The spelling of 133430401020 in words is "one hundred thirty-three billion, four hundred thirty million, four hundred one thousand, twenty".