1212203432354 has 16 divisors (see below), whose sum is σ = 1822526213208. Its totient is φ = 604695048192.

The previous prime is 1212203432329. The next prime is 1212203432393. The reversal of 1212203432354 is 4532343022121.

It can be written as a sum of positive squares in 4 ways, for example, as 762787384129 + 449416048225 = 873377^2 + 670385^2 .

It is a super-2 number, since 2×1212203432354² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212203432354.

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, 7111694 + ... + 7280150.

Almost surely, 2^{1212203432354} is an apocalyptic number.

1212203432354 is a deficient number, since it is larger than the sum of its proper divisors (610322780854).

1212203432354 is a wasteful number, since it uses less digits than its factorization.

1212203432354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176789.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 1212203432354 its reverse (4532343022121), we get a palindrome (5744546454475).

The spelling of 1212203432354 in words is "one trillion, two hundred twelve billion, two hundred three million, four hundred thirty-two thousand, three hundred fifty-four".