203142402140 has 12 divisors (see below), whose sum is σ = 426599044536. Its totient is φ = 81256960848.

The previous prime is 203142402137. The next prime is 203142402181. The reversal of 203142402140 is 41204241302.

It is a super-3 number, since 3×203142402140³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5078560034 + ... + 5078560073.

It is an arithmetic number, because the mean of its divisors is an integer number (35549920378).

Almost surely, 2^203142402140 is an apocalyptic number.

203142402140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203142402140 is an abundant number, since it is smaller than the sum of its proper divisors (223456642396).

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

203142402140 is a wasteful number, since it uses less digits than its factorization.

203142402140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10157120116 (or 10157120114 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 203142402140 its reverse (41204241302), we get a palindrome (244346643442).

The spelling of 203142402140 in words is "two hundred three billion, one hundred forty-two million, four hundred two thousand, one hundred forty".