203720146403142 has 16 divisors (see below), whose sum is σ = 407465238835440. Its totient is φ = 67902557796192.

The previous prime is 203720146403083. The next prime is 203720146403143. The reversal of 203720146403142 is 241304641027302.

It is a super-2 number, since 2×203720146403142² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 203720146403142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203720146403143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039311717 + ... + 1039507712.

It is an arithmetic number, because the mean of its divisors is an integer number (25466577427215).

Almost surely, 2^{203720146403142} is an apocalyptic number.

203720146403142 is an abundant number, since it is smaller than the sum of its proper divisors (203745092432298).

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

203720146403142 is a wasteful number, since it uses less digits than its factorization.

203720146403142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078835767.

The product of its (nonzero) digits is 193536, while the sum is 39.

The spelling of 203720146403142 in words is "two hundred three trillion, seven hundred twenty billion, one hundred forty-six million, four hundred three thousand, one hundred forty-two".