1203134142 has 96 divisors (see below), whose sum is σ = 2873325312. Its totient is φ = 334768896.

The previous prime is 1203134111. The next prime is 1203134159. The reversal of 1203134142 is 2414313021.

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 47 ways as a sum of consecutive naturals, for example, 2028598 + ... + 2029190.

It is an arithmetic number, because the mean of its divisors is an integer number (29930472).

Almost surely, 2^1203134142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1203134142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436662656).

1203134142 is an abundant number, since it is smaller than the sum of its proper divisors (1670191170).

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

1203134142 is a wasteful number, since it uses less digits than its factorization.

1203134142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1203134142 is about 34686.2240954532. The cubic root of 1203134142 is about 1063.5829101595.

Adding to 1203134142 its reverse (2414313021), we get a palindrome (3617447163).

The spelling of 1203134142 in words is "one billion, two hundred three million, one hundred thirty-four thousand, one hundred forty-two".