21140431002034 has 16 divisors (see below), whose sum is σ = 31913657362080. Its totient is φ = 10502579633760.

The previous prime is 21140431002017. The next prime is 21140431002121. The reversal of 21140431002034 is 43020013404112.

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, 7374112 + ... + 9831499.

It is an arithmetic number, because the mean of its divisors is an integer number (1994603585130).

Almost surely, 2^{21140431002034} is an apocalyptic number.

21140431002034 is a deficient number, since it is larger than the sum of its proper divisors (10773226360046).

21140431002034 is a wasteful number, since it uses less digits than its factorization.

21140431002034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17209545.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21140431002034 its reverse (43020013404112), we get a palindrome (64160444406146).

The spelling of 21140431002034 in words is "twenty-one trillion, one hundred forty billion, four hundred thirty-one million, two thousand, thirty-four".