1203231630 has 16 divisors (see below), whose sum is σ = 2887755984. Its totient is φ = 320861760.

The previous prime is 1203231629. The next prime is 1203231691. The reversal of 1203231630 is 361323021.

It is a junction number, because it is equal to n+sod(n) for n = 1203231597 and 1203231606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20053831 + ... + 20053890.

It is an arithmetic number, because the mean of its divisors is an integer number (180484749).

Almost surely, 2^1203231630 is an apocalyptic number.

1203231630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1203231630 is an abundant number, since it is smaller than the sum of its proper divisors (1684524354).

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

1203231630 is a wasteful number, since it uses less digits than its factorization.

1203231630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40107731.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1203231630 is about 34687.6293511102. The cubic root of 1203231630 is about 1063.6116361806.

Adding to 1203231630 its reverse (361323021), we get a palindrome (1564554651).

The spelling of 1203231630 in words is "one billion, two hundred three million, two hundred thirty-one thousand, six hundred thirty".