42120401002043 has 48 divisors (see below), whose sum is σ = 55094870800704. Its totient is φ = 31351120035840.

The previous prime is 42120401002033. The next prime is 42120401002079. The reversal of 42120401002043 is 34020010402124.

It is not a de Polignac number, because 42120401002043 - 2⁸ = 42120401001787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42120401002033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56461571 + ... + 57202707.

It is an arithmetic number, because the mean of its divisors is an integer number (1147809808348).

Almost surely, 2^{42120401002043} is an apocalyptic number.

42120401002043 is a deficient number, since it is larger than the sum of its proper divisors (12974469798661).

42120401002043 is a wasteful number, since it uses less digits than its factorization.

42120401002043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743352 (or 743335 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 42120401002043 its reverse (34020010402124), we get a palindrome (76140411404167).

The spelling of 42120401002043 in words is "forty-two trillion, one hundred twenty billion, four hundred one million, two thousand, forty-three".