401554012005311 has 16 divisors (see below), whose sum is σ = 442578794973696. Its totient is φ = 364305620371000.

The previous prime is 401554012005227. The next prime is 401554012005337. The reversal of 401554012005311 is 113500210455104.

It is a de Polignac number, because none of the positive numbers 2^k-401554012005311 is a prime.

It is a super-2 number, since 2×401554012005311² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401554012005911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306569975 + ... + 307877016.

It is an arithmetic number, because the mean of its divisors is an integer number (27661174685856).

Almost surely, 2^{401554012005311} is an apocalyptic number.

401554012005311 is a deficient number, since it is larger than the sum of its proper divisors (41024782968385).

401554012005311 is an equidigital number, since it uses as much as digits as its factorization.

401554012005311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614447515 (or 614447493 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 401554012005311 in words is "four hundred one trillion, five hundred fifty-four billion, twelve million, five thousand, three hundred eleven".