1211247539030 has 16 divisors (see below), whose sum is σ = 2180477606544. Its totient is φ = 484447452000.

The previous prime is 1211247538999. The next prime is 1211247539041. The reversal of 1211247539030 is 309357421121.

It is a congruent number.

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, 6346721 + ... + 6534780.

It is an arithmetic number, because the mean of its divisors is an integer number (136279850409).

Almost surely, 2^{1211247539030} is an apocalyptic number.

1211247539030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211247539030 is a deficient number, since it is larger than the sum of its proper divisors (969230067514).

1211247539030 is a wasteful number, since it uses less digits than its factorization.

1211247539030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12890911.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 1211247539030 in words is "one trillion, two hundred eleven billion, two hundred forty-seven million, five hundred thirty-nine thousand, thirty".