1242534421110 has 32 divisors (see below), whose sum is σ = 2982403556352. Its totient is φ = 331306851680.

The previous prime is 1242534421103. The next prime is 1242534421153. The reversal of 1242534421110 is 111244352421.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1944804 + ... + 2503463.

It is an arithmetic number, because the mean of its divisors is an integer number (93200111136).

Almost surely, 2^{1242534421110} is an apocalyptic number.

1242534421110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242534421110 is an abundant number, since it is smaller than the sum of its proper divisors (1739869135242).

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

1242534421110 is a wasteful number, since it uses less digits than its factorization.

1242534421110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457588.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 1242534421110 its reverse (111244352421), we get a palindrome (1353778773531).

The spelling of 1242534421110 in words is "one trillion, two hundred forty-two billion, five hundred thirty-four million, four hundred twenty-one thousand, one hundred ten".