1211402004430 has 16 divisors (see below), whose sum is σ = 2182286381760. Its totient is φ = 484169074272.

The previous prime is 1211402004353. The next prime is 1211402004431. The reversal of 1211402004430 is 344002041121.

It is a happy number.

It is a super-3 number, since 3×1211402004430³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211402004431) 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, 48952950 + ... + 48977689.

It is an arithmetic number, because the mean of its divisors is an integer number (136392898860).

Almost surely, 2^{1211402004430} is an apocalyptic number.

1211402004430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211402004430 is a deficient number, since it is larger than the sum of its proper divisors (970884377330).

1211402004430 is a wasteful number, since it uses less digits than its factorization.

1211402004430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97931883.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1211402004430 its reverse (344002041121), we get a palindrome (1555404045551).

The spelling of 1211402004430 in words is "one trillion, two hundred eleven billion, four hundred two million, four thousand, four hundred thirty".