201045890031 has 16 divisors (see below), whose sum is σ = 306604953600. Its totient is φ = 114789873888.

The previous prime is 201045889999. The next prime is 201045890033. The reversal of 201045890031 is 130098540102.

It is not a de Polignac number, because 201045890031 - 2⁵ = 201045889999 is a prime.

It is a super-2 number, since 2×201045890031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201045889974 and 201045890001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201045890033) 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, 3869071 + ... + 3920688.

It is an arithmetic number, because the mean of its divisors is an integer number (19162809600).

Almost surely, 2^201045890031 is an apocalyptic number.

201045890031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201045890031 is a deficient number, since it is larger than the sum of its proper divisors (105559063569).

201045890031 is a wasteful number, since it uses less digits than its factorization.

201045890031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7790998.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 201045890031 in words is "two hundred one billion, forty-five million, eight hundred ninety thousand, thirty-one".