1142023420434 has 64 divisors (see below), whose sum is σ = 2552250637440. Its totient is φ = 338249640960.

The previous prime is 1142023420427. The next prime is 1142023420457. The reversal of 1142023420434 is 4340243202411.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13927 + ... + 1511370.

It is an arithmetic number, because the mean of its divisors is an integer number (39878916210).

Almost surely, 2^{1142023420434} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142023420434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276125318720).

1142023420434 is an abundant number, since it is smaller than the sum of its proper divisors (1410227217006).

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

1142023420434 is a wasteful number, since it uses less digits than its factorization.

1142023420434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525675.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1142023420434 its reverse (4340243202411), we get a palindrome (5482266622845).

The spelling of 1142023420434 in words is "one trillion, one hundred forty-two billion, twenty-three million, four hundred twenty thousand, four hundred thirty-four".