1213145554510 has 32 divisors (see below), whose sum is σ = 2186870482944. Its totient is φ = 484545600000.

The previous prime is 1213145554457. The next prime is 1213145554531. The reversal of 1213145554510 is 154555413121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213145554510.

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, 28355635 + ... + 28398385.

It is an arithmetic number, because the mean of its divisors is an integer number (68339702592).

Almost surely, 2^{1213145554510} is an apocalyptic number.

1213145554510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213145554510 is a deficient number, since it is larger than the sum of its proper divisors (973724928434).

1213145554510 is a wasteful number, since it uses less digits than its factorization.

1213145554510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46860.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 1213145554510 in words is "one trillion, two hundred thirteen billion, one hundred forty-five million, five hundred fifty-four thousand, five hundred ten".