20133402140 has 12 divisors (see below), whose sum is σ = 42280144536. Its totient is φ = 8053360848.

The previous prime is 20133402103. The next prime is 20133402143. The reversal of 20133402140 is 4120433102.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1006670107 = 20133402140 / (2 + 0 + 1 + 3 + 3 + 4 + 0 + 2 + 1 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133402143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503335034 + ... + 503335073.

It is an arithmetic number, because the mean of its divisors is an integer number (3523345378).

Almost surely, 2^20133402140 is an apocalyptic number.

20133402140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20133402140 is an abundant number, since it is smaller than the sum of its proper divisors (22146742396).

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

20133402140 is a wasteful number, since it uses less digits than its factorization.

20133402140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006670116 (or 1006670114 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20133402140 its reverse (4120433102), we get a palindrome (24253835242).

The spelling of 20133402140 in words is "twenty billion, one hundred thirty-three million, four hundred two thousand, one hundred forty".