1211403212430 has 32 divisors (see below), whose sum is σ = 2911662245664. Its totient is φ = 322563686016.

The previous prime is 1211403212429. The next prime is 1211403212491. The reversal of 1211403212430 is 342123041121.

It is a super-3 number, since 3×1211403212430³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1211403212430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29802517 + ... + 29843136.

It is an arithmetic number, because the mean of its divisors is an integer number (90989445177).

Almost surely, 2^{1211403212430} is an apocalyptic number.

1211403212430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211403212430 is an abundant number, since it is smaller than the sum of its proper divisors (1700259033234).

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

1211403212430 is a wasteful number, since it uses less digits than its factorization.

1211403212430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59646340.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1211403212430 its reverse (342123041121), we get a palindrome (1553526253551).

The spelling of 1211403212430 in words is "one trillion, two hundred eleven billion, four hundred three million, two hundred twelve thousand, four hundred thirty".