34100515421 has 4 divisors (see below), whose sum is σ = 38972017632. Its totient is φ = 29229013212.

The previous prime is 34100515399. The next prime is 34100515433. The reversal of 34100515421 is 12451500143.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12451500143 = 12503 ⋅995881.

It is not a de Polignac number, because 34100515421 - 2⁶ = 34100515357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34100515021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2435751095 + ... + 2435751108.

It is an arithmetic number, because the mean of its divisors is an integer number (9743004408).

Almost surely, 2^34100515421 is an apocalyptic number.

It is an amenable number.

34100515421 is a deficient number, since it is larger than the sum of its proper divisors (4871502211).

34100515421 is an equidigital number, since it uses as much as digits as its factorization.

34100515421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871502210.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 34100515421 in words is "thirty-four billion, one hundred million, five hundred fifteen thousand, four hundred twenty-one".