1211203000430 has 32 divisors (see below), whose sum is σ = 2251289334528. Its totient is φ = 468686937600.

The previous prime is 1211203000417. The next prime is 1211203000433. The reversal of 1211203000430 is 340003021121.

It is a junction number, because it is equal to n+sod(n) for n = 1211203000399 and 1211203000408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211203000433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188660 + ... + 1567800.

It is an arithmetic number, because the mean of its divisors is an integer number (70352791704).

Almost surely, 2^{1211203000430} is an apocalyptic number.

1211203000430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211203000430 is a deficient number, since it is larger than the sum of its proper divisors (1040086334098).

1211203000430 is a wasteful number, since it uses less digits than its factorization.

1211203000430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382012.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1211203000430 its reverse (340003021121), we get a palindrome (1551206021551).

The spelling of 1211203000430 in words is "one trillion, two hundred eleven billion, two hundred three million, four hundred thirty", and thus it is an aban number.