1211353152 has 56 divisors (see below), whose sum is σ = 3250216512. Its totient is φ = 398092800.

The previous prime is 1211353147. The next prime is 1211353193. The reversal of 1211353152 is 2513531121.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 30799 + ... + 58062.

Almost surely, 2^1211353152 is an apocalyptic number.

1211353152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211353152 is an abundant number, since it is smaller than the sum of its proper divisors (2038863360).

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

1211353152 is an equidigital number, since it uses as much as digits as its factorization.

1211353152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88947 (or 88937 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 1211353152 is about 34804.4990195233. The cubic root of 1211353152 is about 1065.9993124216. Note that the first 3 decimals are identical.

Adding to 1211353152 its reverse (2513531121), we get a palindrome (3724884273).

The spelling of 1211353152 in words is "one billion, two hundred eleven million, three hundred fifty-three thousand, one hundred fifty-two".